Today I have a bit of a speciality charger from Xtar the BC4. It’s a charger that’s designed for use with 1.5V lithium ion batteries and NiHM rechargeable batteries. It fits both AA and AAA sizes, has 4 bays and features USB-C as an input. Thanks to Xtar for sending this too me to take a look at and review.
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Packaging here is a basic hanging retail package with clear front showing you everything you get. The standard unit comes with the charger, charger cover, and a USB-A to USB-C Cable. The manual is quite simple and available in several languages.
It’s worth noting there was an older model of charger that Xtar sold under their Allmaybe brand, that’s also called the BC4. That was a 4 Bay charger that charged 4.2V lithium batteries and isn’t at all like the charger we see here. It’s confusing and I wish Xtar would have chosen a different name for the charger we are looking at here today.
Recharging
I tested the charging of this light with primarily large AA sized batteries although it will charge AAA sized batteries too. The charge will only charge NiMH and 1.5v Lithium Ion chemistries. 4.2V Lithium Batteries of either size are not supported.
All the usual Xtar technologies are supported here, 0V activation, 3 Stage charging to maximize battery lifespan, Precise cut off when charged, Reverse polarity protection, short circuit, overheat etc. I started with charging the 1.5v Liion battery and as you can see from the graph here it took 2 hours and 16 minutes at a maximum of .3A. The batteries stopped charging at 1.54V.
For my NiMH charge the total charge took 2 hours and 7 minutes, so slightly faster and you can see that it was a more pulsed charge with voltage remaining very consistent.
For the last test I charged 2 nimh, and 2 liion batteries at the same time, and the total charge time was 2hrs 40 minutes. Here we saw a total charging rate peak at 1.5A spread across all 4 batteries.
Uses for 1.5V Li Ion batteries
One thing I wanted to touch on is where and why you might choose a 1.5V lithium ion battery over a NiHM or standard alkaline. The very basics of how they work are, it’s using your standard 4.2V lithium ion cell and then has circuitry to step down the power to 1.5V. The ones here I tested Xtar provided, and since you use an external charger they have a larger capacity then Lithium ion batteries have a better power density and lighter weight then their comparable alkaline cells, and you don’t have the one time use either. In terms of power these 1.5V batteries don’t suffer a voltage sag as they discharge like Alkaline and NiHM do, so your high drain devices like camera flashes won’t slow down during use. The bad side is the built in power meters in some devices won’t be accurate as they count on that voltage sag to estimate the amount of life left. There is also no memory effect when compared to NiHM.
I did run a quick runtime comparison with the Olight i5T CU with the Xtar 1.5v Lithium ion battery they rate at 3300mAh, and an Amazon Basics High Capacity NiMH (2400mAh) I previously had tested this light with. You can see here in the graph the outputs are identical except for the very end. The Liion cell has a very sharp drop off when the internal protection circuit kicks in on the battery and stops all current. The NiMH battery on the other hand has some gradual decline as voltage drops at the end of it’s lifecycle. Runtimes were within just a few minutes difference with the Nimh having the slight advantage on this light. Not sure how Xtar is calculating their cell rating on this one.
Conclusion
This is a basic charger from a brand with a good track record. I am not sure it has a ton of applications in the current flashlight market for enthusiasts but it has applications elsewhere in the home. It’s a nice charger for photographers looking to recharge their eneloop batteries for flashes or those who switch over to 1.5V lithium cells which would work quite well, for anyone with kids to recharge batteries for the endless number of toys, and other household tasks. Yes there are flashlights still using AA sized batteries that use Nihm batteries where this and the 1.5V lithium batteries would work just fine, I just personally use 4.2V 14500’s in all my lights where I am able to due to more performance and good runtimes generally.
I think this would be a little more useful charger if it also charged the more conventional 4.2V lithium ion batteries like 14500’s as then it would make a great travel charger to take care of 2 physical sizes, and 3 chemistries/voltages in a small package, and able to use USB-C to C natively. The onboard flashlight does light up but it’s a standard 5mm LED, nothing to write home about but better than nothing in an emergency. The charger also has a USB-A out that’s rated for 5V at 1A, so you could use it to charge your phone in a pinch. Overall this is a specialty charger for a niche market but it does a good basic job for what it’s designed for and I can recommend it if you fall into that niche.
Today I have Klarus’s new Deep Carry EDC light, the E2. This is the second light in the Klarus E series, and I reviewed the E1 last year. Make sure to check the description for a link to that review. This light is designed with EDC in mind to minimize the size of an 18650 light while providing a good amount of output and features. Thanks to Klarus for sending this to me to take a look before it’s widely available.
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Packaging is a nice white Retail box with a red hanging tab. It has a photo of the light on the front, with the model number prominently displayed.On the back and side there are stats about the light and a chart telling more specs.
Inside the package you get the following. The light itself, along with a Klarus 3600mAh 18650 battery, deep carry pocket clip, lanyard, extra o’ring, micro USB charging cable, and small gray felt bag.
Construction
The Klarus E2 is made from Aluminium and hard anodized a semi gloss black. It’s a nice fit and finish as recent Klarus lights have been. The tail and body are all the same as the E1 had. Starting at the tail cap, we have a dual switch design. The main switch is a larger round button that sits up somewhat proud, next to it is a paddle that acts and the secondary switch There is half a shroud built up around the larger button on the outside, to help it from getting pressed accidentally, and it’s the lanyard attachment point. This is nicely styled and works well from my experience but the downside is it’s not magnetic and it can’t tail stand.
Threads are anodized, acme cut, and fairly small. There are springs on both ends of the light, and a dual ring system in the head like we saw on the Klarus XT21X. The body section of the light has concentric rings milled into it which gives some grip but not a ton. The head of the light is one piece with the body, in fact the entire diameter of the light is the same. There are no buttons and only minimal labeling. In my example the laser engraved serial number is not straight. The clip fit’s up on the head, and does rotate around, it can be removed if you wish. Up near the very top there is a very small tricolor LED on the side of the light that’s used for a power indicator and when changing UI modes. The front of the light unscrews in theory, and under it is a plastic lens I believe. Under that is the reflector which is similar to a TIR style optic. As a result you can’t really see the LED underneath.
Size & Weight
I measured the length at 115mm, and the diameter at 23mm. Weight with the included battery and clip was 110g.
Comparisons
When compared to the E1 the E2 is 8mm longer, and the same diameter. For me for the lights I own, the Olight S2R II and S30R III, both being small 18650 lights with TIR style optics.. Diameter wise they are identical.
Retention
The light carries in my front pocket really nicely. It’s an incredibly deep pocket clip that can also be used to attach to the bill of a hat to use as a makeshift headlamp in a pinch. Being a head up carry, it does require you to flip the light around in your hand to turn it on without having a side switch. I found this a little awkward and I think I prefer a side switch for this reason on this style of light but it was a minor complaint. The slim diameter, relative shortness, and deep carry pocket clip make for a comfortable EDC in my testing.
LED & Beamshot
The Klarus E2 receives an upgraded LED and outputs from the E1. It’s using a Cree XHP35 HI LED in cool white. No tint data is given but it’s not crazy cool. The beam here is nice out of the TIR style flat optic, you get a hot center thats a majority of the light with minimal diffused spill and it throws further then you think with Klarus quoting 190 meters of 9025 candela.
High 1600 lumens
Medium 400 lumens
Low 100 lumens
Moon 8 lumens
Strobe 1600 lumens
SOS 60 Lumens.
Runtime & Heat
For my Runtime and heat tests I used the included Klarus branded 3600mAh battery. The lights high output of 1600 lumens began stepping down from the moment it came on and it was down to 46% of relative output at 1:10. This is an a much faster decline then I expected. The light does have some active thermal management and the light increased slowly over the next 4 minutes to 62% relative output before decreasing again around the 8:30 mark down to the 46% relative output. From here it sat pretty flat out to 10% relative output at 2:40:00 mark. Just before LVP kicked in on the light at the near 8 hour mark it did gain in brightness the last 20 minutes by 6 relative percent. You notice heat quickly on this light in high mode, the hottest I saw was 51.9C at the 45 second mark.
UI
UI on this light is the exact same as the E1 and controlled all with the switches in the tail cap of the light. Like other recent Klarus lights, there are 2 UI modes on this light. Factory default mode is Outdoor Mode, which I found to work for EDC pretty well.
You have a paddle switch that starts allowing the light to work on low either in momentary if just clicked briefly or if you click and hold for about 1 second it will stay on. Once in the on position this paddle can be used to step through the lights 4 main modes in increasing order. 8LM, 100LM, 400LM, 1600LM.
Also on the tail cap is a larger round mechanical switch that will give you instant access to turbo. You can half press this for momentary or full press to lock on. Once the light is on you can use the paddle to cycle between modes.
To switch modes when the light is off, press and hold the paddle for 5 seconds and the battery indicator on the front side of the light will begin flashing red/green. Then click the large primary switch without releasing the paddle.
The second mode is a tactical setting where the primary button turns the light on to high, then use the paddle to change modes, and in tactical the light goes from high and decreases in brightness to medium (400 lumens), Low (100 Lumens), and then Moonlight (8 Lumens). To enter the strobe while the light is on, hold the paddle for 2 seconds. When the light is off, pressing the paddle will give you direct access to the strobe.
Lockout in either mode can be accomplished via unscrewing the tail slightly to reset.
Recharging
The Klarus E1 again uses a proprietary battery here, where both the positive and negative terminals are on the traditionally positive end of the battery. The positive terminal has a plastic spacer around it that sticks out a bit. A normal flat top battery will work in the light with a magnet spacer but you will lose the recharging feature of the light. The light uses MicroUSB for recharging which is disappointing in mid 2020.
Speaking of recharging I charged the light from LVP at 2.86V to full at 4.18V in a total of 4 hours and 25 minutes. Charge speed was around and ranged from 0.66A to right at 1A. Definitely on the slower side but safe. What I didn’t like was the light’s LED indicator on the side changed from red (charging) to green (Charged) before the light was completely full. I got the full indicator an hour before the light actually stopped using current and I tested the battery here at 4V. It would be good to see the light actually go green when it was done charging instead of being almost done.
Pro
Good factory deep carry clip, but it only allows for tip up carry and it rotates a bit to easily.
Good fit and finish, it’s a good looking production light.
2 UI modes for users to pick from.
Con
Minimal change from the Klarus E1
Proprietary battery, this time it’s larger capacity at least.
Doesn’t tail stand, or is magnetic, because of the dual button configuration on the tail cap.
Wasn’t a fan of taking it out of my pocket and having to change grip to turn it on.
Moonlight mode here is brighter at 8 lumens than the E1 which isn’t moonlight at all.
Conclusion
The Klarus E2 looks familiar because it is largely the E1 that’s slightly longer, with a different LED to produce more output (still in cool white only) and comes with the battery the larger capacity E1 should have shipped with originally.
I like it’s size for an 18650 light, it’s short, and about as narrow as possible. It has a pretty good UI and I love that it has the optional Outdoors mode or Tactical mode. The light isn’t perfect though, I found in my daily IT work I missed the ability to tail stand and a magnetic tail cap, and I didn’t love having to rotate the light in my hand when pulling it out of my pocket to use it. Moonlight mode is too bright here at 8 lumens, and it steps down super fast from it’s highest output. It’s good to see they went with the larger capacity battery here vs the E1. I hope before the light ships they revise the firmware to let the green charged light come on at closer to 4.2v vs the 4.0v it comes on in my example.
MSRP at a few retailers who are listing the light for sale now at the time of this video is about $70 which is a little on the steep side with the competition and a big step up from the E1. A drop in price would make the light more competitive. If you liked the E1 you will like the E2 as it’s basically the exact same light with a brighter LED and higher capacity battery that’s just slightly longer overall.
Xtar a company primarily known for it’s battery chargers and batteries along with a few other things such as flashlights, has a new product, and a new category for them. In front of me I have the Xtar AF1 Portable ozone generator.
Ozone isn’t super safe and before you use an ozone generator you need to be aware of how to safely use it. It can cause eye and lung irritation as well as difficulty breathing in higher concentrations. You shouldn’t use an ozone generator in the same room or space as people or pets are in, and then make sure you thoroughly ventilate the space after the treatment is done to dissipate any remaining Ozone. Ozone is heavier then air so it tends to collect at the lowest point in the room. I would encourage you to do your own research if you do decide to buy any ozone generator.
Tell a few Specs
The AF1 is a small portable Ozone generator that’s 2.74” in diameter, 1.4” thick and weighs 3.7oz. It has an internal lithium polymer battery so it can be run without AC power, or you can hook it up with the included USB-A to USB-C cable to a power source (It supports USB-C to C) for longer runtimes. It’s made of aluminum with a metal grill on top. If you look carefully you can see the small single plate ozone generator inside in the middle.
On the bottom you have a nice set of specs that tell you charging current (4.2V @ 0.38A), and a rated power of 3W. The AF1 has 4 modes that each put out ozone to treat a certain size space.
Mode 1 – 0.01m3
Mode 2 – 0.1m3
Mode 3 – 0.5m3
Mode 4 – 3m3
UI
I find the UI here frustrating, it’s simple but I just have trouble getting it to work reliably. You long press to turn it on and then it blinks the power level to you. The easiest thing to do is just to let it go and in about 3 seconds it turns on to the lowest mode, you then quick press the button to go up in modes. Long press to turn off. It works fine but is a little counter intuitive, when it’s blinking I want to press the button again to start the generation but it doesn’t work this way.
Conclusion
This is a bit of a tricky one to make a conclusion for. The AF1 definitely generates ozone, but it’s not a ton, it will struggle with trying to improve odors in a room, or moderately sized car in my experience. I wish you could hook it up to a power source and it would run until the power source was depleted or if you had an AC adapter it was unplugged, however that’s not the case, so when I ran it in a car, with a large capacity battery or an AC adapter plugged into a wall outlet it ran for 2 and a half hours before shutting off via a timer. The internal battery is nice especially on lesser settings in small situations. The large Ozone generators you can buy online for about $75 produce orders of magnitude more ozone and these are more appropriate for larger spaces like rooms or entire cars with strong odors like smoking.
The better use for the AF1 I think are small applications, deodorizing a gym bag, putting it in a shoe box or plastic bag with smelly shoes etc. A large plastic tote filled with hunting gear you want to get rid of the human scent etc. Here the AF1 can produce enough ozone in a small enclosed space to actually make a difference especially if your running it for a few cycles hooked up to a large battery.The EPA doesn’t recommend Ozone as a method to kill viruses currently, so I don’t recommend it for that. One application I plan to try is use in my refrigerator as that’s a popular use of ozone too at low rates.
An low power ozone generator is probably something most people don’t need but something I think many would find useful.
Today I have a review of the Wowtac A4 V2 flashlight that’s utilizing a Cree XHP35 HI LED an included 26650 battery to produce a handheld thrower flashlight with nearly 1900 lumens. Thanks to Wowtac for sending this to me to review.
WowTac is having a sale for Father’s day on all of their products. 20% off all lights via the WowTac Amazon store, and 30% off the A4 V2 with my discount code in the description only on June 15 through the 20th. So make sure you check that out to get a gift for a dad in your life or to treat yourself.
Get 20% off for all WOWTAC flashlights using the code “2LiquidRetro” at https://amzn.to/3eaPX5W
Get 30% off for the A4 V2 Neutral White using the code “3LiquidRetro” at https://amzn.to/2UHRV6f
Get 30% off for the A4 V2 Cool White using the code “3LiquidRetro” at https://amzn.to/3hoFmXk
Packaging is a brown rigid box with a deep lid that fits all the way to the base. Similar to other Wowtac and Thrunite lights. The outside is minimal with just the light name and line drawing and then emitter option on the side. Inside the light is protected with foam. Accessories include the 5000mAh Thrunite branded button top 26650 battery, basic lanyard, spare orings, and spare button cover.
Construction
The light is made from aluminum and anodized black. I have no complaints with the machining. The tail is non magnetic, flat and allows for tail standing. The light comes into 3 pieces, the tail, body tube and head. The tail and body tube has square knurled that are reasonably shallow, they do a good job at adding grip without being too aggressive.
The tail cap has 2 large beefy springs inside, not what you typically see but it does a fantastic job of making the battery not bounce or rattle. The body tube is non reversible (anodized on the head end, raw on the tail end). The head itself is fairly standard, the steps up the the lens are closer to 90 degrees then angular and gradual. The front bezel is smooth and I was able to twist it off by hand. The glass is anti reflective coated. The reflector is smooth and deep, with the LED having some space around it at the bottom.
Size & Weight
I measured overall length at 125mm, minimum diameter on the tube at 32mm and maximum diameter on the head at 48mm. Weight with the included battery is 235g
Competition
A couple of competitors came to mind with the A4 V2, the Thrunite Catapult V6 and the Astrolux FT03. The Astrolux is closest in terms of price, but it’s head is significantly larger. I wouldn’t think about trying to carry the FT03 on my belt with a holster but with the A4 V2 that’s not an issue. The Thrunite Catapult V6 is similar, but has a slightly larger head.
Retention
There isn’t much to say here on retention. There is a small hole in the tail cap for a lanyard that is included with the light. For lights like this a holster can be a nice option but one isn’t included.
LED & Beam
The LED in use on the Wowtac A4 V2 is the Cree XHP35 HI. A cool and neutral white model are both available, and in my example I have the Neutral white. Tint is on the warmer side of Neutral which I enjoy I would say between 4500k and 5000k. The beam with this LED and the smooth fairly deep reflector is a thrower. You get a small tight hot center and a large dim spill. At lower powers the spill is not very visible.
Wowtac’s claimed ratings
Turbo – 1895 Lumens
High – 1058 Lumens
Medium – 208 Lumens
Low – 28 Lumens
Firefly – 0.5 Lumens
Strobe – 1200 Lumens
Heat & Runtime
I ran an uncooled heat and runtime test with this light and agree with Wowtac’s claims. Turbo has stepped down at the 3 minute mark to the 50% relative output mark where it ran till the 24 minute mark. Here is ran at about 42% relative output for the bulk of the time about another 108 minutes before stepping down and low voltage protection kicking in on the light at 2.985V. The light gets warm around the mid section where the LED is and other electronics. Maximum heat I saw during Turbo was 57C (134F).
UI
The UI here is standard Wowtac/Thrunite. It’s simple with just the features you need and nothing more. It’s a simple electronic switch under a slightly raised dome button. Underneath is a 2 LED (Red & Blue) to indicate charge status. It comes on blue briefly when the light is turned on.
Long press from off to get moonlight mode. A single press turns the light on in it’s lowest mode. When on if you long press it will advance up in modes. You have a low, medium and high. Double press to shortcut to turbo, and once in tubo double press again to go to strobe.
Recharging
The A4 V2 has onboard charging via MicroUSB. The port is slightly offset from the directly behind the button, not typical but not bad either. The silicone cover doesn’t get in the way. Total charge time for the included 5000mAh battery was 2 hours and 53 minutes. Charging started quickly, at 1.8A and generally increased up until the 2 hour and 18 minute mark before slowing down as it ended. Maximum charge rate I saw was right at 2A. The battery measured 4.155V when charging stopped. There is a LED inside the switch that’s red when charging and blue when charged.
Conclusion
The Wowtac A4 V2 is a nice budget thrower, available in both neutral and cool white, so everyone can be happy. It’s less expensive then other similarly sized lights running a 26650 battery with performance that’s just as good. It doesn’t come with as many accessories but for the price I am ok with that.
Don’t forget about the father’s day sale here either, as this would make a great gift. It’s an all inclusive package with the battery and onboard USB charging. It’s available from Amazon so it will arrive fast and has a great return policy. If your dad or someone else in your life hasn’t had a modern LED flashlight powered by lithium batteries they will be amazed at how much and how far the light goes in such a small package. Gone are the days that you need a flashlight the size of a baseball bat, here are the days a ton of power fits comfortably in your hand and only weighs 8.29oz.
This is a nice budget light with no budget features. I can recommend it.
Get 20% off for all WOWTAC flashlights using the code “2LiquidRetro” at https://amzn.to/3eaPX5W
Get 30% off for the A4 V2 Neutral White using the code “3LiquidRetro” at https://amzn.to/2UHRV6f
Get 30% off for the A4 V2 Cool White using the code “3LiquidRetro” at https://amzn.to/3hoFmXk
Today I have yet another version of the Lumintop FW3A, this time with the FW4A with 4 LED’s in the head instead of 3. Output increases from 2800 lumens to 3600 lumens depending on the LED thats chosen.
Packaging here is the same box as the FW3 came in but only with FW4A on it. LED tint is still a sticker on the side of the box. Inside the light is protected with foam. Accessories is the same too with the FW4A including a silicon GITD diffuser that fits over the head of the light.
Construction
The Lumintop FW4A is basically an FW3A with a slightly larger head. The tail, clip, and body tube are identical to the FW3A. I have no issues with the machining or build quality*. There does seem to be less options at least from Lumintop direct in colors or materials for the FW4A, but since it’s reusing so many parts you can mix and match anything from the body or tail cap with other variants to make your own look. In it’s stock form it’s made of aluminium and anodized in a gray slightly blue color. One difference I have noticed is the serial number is laser engraved on the tail, and the clip color is now silver on the FW4A, where it was more of a dark gray on the FW3A I have.
*The FW3A had a lot of reliability issues early on, It’s far from a perfect design in that regard. That said retaining rings have been added to the tail cap to keep it’s contents in place better, and hopefully improve the button issues. The head also has things same retaining ring. The inner body tube is still subject to some movement so it’s still best practice to only open the light from the front. If you run into trouble the Budget light forums are still the best place to go for “how to fix your light”. Most issues are fixable from what I have seen if you want to trouble shoot. My light had no issues and continues to be reliable.
Size & Weight
I measured the length at 92.8mm, Minimum diameter on the body at 21.5mm, and maximum diameter on the head at 28.5mm. This is only a 3mm increase in the diameter of the head over the FW3A. I measured the weight with the battery and clip at 110.8g. That’s only 12.7g heavier then the aluminum FW3A I have. It’s
Retention
Retention is decent but I wish the clip was deeper carry from the factory myself. The increase in size with the FW4A is negligible from the FW3A, and it’s less than many of the “custom” triple emitter lights I carry on a regular basis.
LED & Beamshots
The FW4A is available with many different emitter options, like much of the FWXX series of lights. My light here is running the Cree XP-L HI LED in cool white at 6500k, and while 6500k isn’t my favorite tint, the XP-L HI LED’s are not bad for a non high CRI option. With the XPL-HI Lumintop says you can get 3600 Lumens vs the FW3A 2600. Other LED tints that are available are the Luminus SST20 4000k 90 CRI producing about 2100 lumens. Nichia 219C at 4000k, and a Cree XP-L HI in a neutral 5000k tint. All LED options are mounted on a copper PCB to help with heat dissipation.
The beam with the FW4A is floody with a more soft focused hotter center. Mine here has the clear optic, but frosted is also available. The center is fairly round and has a small amount of tint shift in the middle. The outer spill is rather square in shape, almost star-like. I don’t notice it outside but notice it instead more close up when really looking.
Beam with the diffuser
Heat & Runtime
I received a comment on my HL3A review that I really should calibrate my FWXX series lights before I do a heat and runtime test. While I still firmly believe that if this is necessary it’s something the factory should do (Or be burned into the firmware) I decided I would do my heat and runtime tests both uncalibrated and then calibrated just to see what the difference was.
So my first test with with the light uncalibrated and a Sony VTC6 and started in Turbo. Pretty much instantly the light starts decreasing in output, at the 30 second mark where the FL1 Standard is taken the light had declined about 400% from where it started. This sounds like a lot and it is but it’s still quite bright and to be expected. The light reaches equilibrium of about 60% relative output where irt runs for 2 hours and 35min, and eventually gets down to 10% output at 3 hours and 32 minutes of runtime. Maximum temperature I saw was 38.7C (101F) at the 13 minute mark, the bulk of the output was around the 36C mark.
The calibrated runtime was a different story, what calibration does is sets the room temp of the light and then you can raise the ceiling. I raised it an extra 25 degrees if my memory is correct. I used the same battery and after and with everything cooled off I ran it again. What I saw here was an initial drop from turbo but much smaller and a bit of a step at the 20 second mark before decreasing again. At the 30 second market the calibrated light was putting out a bit more output, and was 2.8 C warmer. The next 11 minutes though output increased again slowly as temps were allowed to increase slightly. Total runtime was only 1 hour and 42 seconds but you ended up being able to run a big brighter without stepping down as far. Maximum temperature I saw was 57.2C (134F) at the 24 minute mark. While this is quite hot it was much later than the uncalibrated mark and it’s adjustable too if you don’t want to go as hot. I would agree with the commenter, calibrate your lights, it’s worth a few minutes of your time.
UI
The UI here is standard Andruil, and it works well. I will link to my FW3A review in case this is your first time seeing Andruil and include the diagram below. It looks a little complicated but once you get a hang of it, it works pretty well. It doesn’t bother me that the flashing and special modes are a little hard to locate as I personally rarely use them. As mentioned before I did “calibrate” the temp sensor on this light and I ended up using a video I found on Youtube to do it rather than use the diagram. For me it just worked a little better.
Conclusion
My conclusion is the FW4A is yet another nice light in the series. It’s a lot of output in a very small package and quite a minimal increase in size. That said with an increase in output it’s a step up in heat too. The FW4A at least right now has less modding potential then the FW3, but if it catches on and becomes more popular you may see different optics, and tuboglow being offered too.
A light like this is more aimed at the enthusiast market with the Andriul UI and somewhat dangerous nature of so much power in a small size and finicky nature that the FWXX series lights can be, that said it’s still alot of fun and pretty affordable too.
Pickup the Lumintop FW4A at http://suo.im/6fm8lc and get a 20% discount by using code LMT204A
Olight has another raw copper light out for all you copper fans with the Olight i5T Cu. This is a special edition of the i5T which has been released in several different editions in 2020. It’s a 2 mode light taking a AA battery with a deep cary pocket clip. It’s similar to the Olight i3T but larger. Thanks to SkyBen for sending this to me to review.
There are a couple of versions of the i5T from Olight. There as a Shot Show edition they gave out to people, it was aluminum with a neutral white emitter, A CoVID relief special edition that was sold, it was aluminum and had some blue anodized accents on it, a normal black anodize and desert tan models, and the one I have here the in copper. Everything except the shot show edition has the standard cool white emitter.
Packaging and Accessories
The i5Tcu came in what I would call a gift box. It’s a heavy duty white cardboard that’s finished nicely with a color photo on the front and a limited amount of details on the back. Inside the light was vacuum sealed in plastic with an anti oxidizer packet to prevent any patina from forming until it arrives in your hands. The only included accessory was the manual and GemTec AA battery that came preinstalled.
Construction
No complaints here on construction quality, Olight does a nice job with these, and is one of my favorites when it comes to their raw copper machining. Everything is nicely chamfered, and polished. It also comes in the least oxidized state of any of the copper flashlights I have. The overall design here is a largely a scaled up version of the Olight i3T with a few differences. At the tail the buttons appear to be the same, as the i3T. The proud switch has a hard plastic edge and then a rubberized grip at the very top. It takes quite a bit of force to active the switch which I like. This one won’t come on in your pocket on accident. I do feel a bit of cell movement internally when pressing the switch which feels a little unnatural.
The knurling on the tail cap is mostly horizontal with just a touch of vertical, mine seems to be not perfectly centered, like it is on the i3T. Not sure if this is intentional or just a slight manufacturing issue, either way it adds a nice amount of grip to unscrew the tail for battery replacement and style. Internally the tail section is made of copper too, and has nicely cut square threads that need a bit of grease.
The pocket clip is push on style but fits tightly, more on retention in a minute. The body itself has the double line spiral as the i3T does. It’s fairly deeply cut and the walls have minimal chamfer. It’s mostly for style but adds some grip to. The head is very plain, it has the model number and serial engraved into it and does not appear to come apart or it’s a one piece design. The lens appears to be plastic and be a one piece with the optic and reflector.
Size & Weight
I measured the length of the light at 95.5mm, diameter at 17.9mm and weight with an Amazon Basics High Capacity NiHM and clip at 112.3g. It’s a pretty heavy light, but that’s what you expect for copper
When I compare it to other similar lights I have, the diameter is a little smaller than my Reylight Pineapples or Ti LAN or the copper variants. Length wise it’s a little shorter too. If you liked the Olight i3T it’s just a little longer and slightly larger in diameter. It’s fairly comparable in size to the Olight M1T Raider, but smaller diameter and slightly longer.
Retention
Retention on the i5T is good. I like to EDC 14500 lights, they are a good balance of size, weight, and most importantly diameter. This is especially true when I am wearing shorts. The i5T has a reasonably deep carry pocket clip, and on the copper model it’s a bronze PVD colored finish that fits pretty well especially after the light takes on some patina. It has a reasonable amount of room for material at the top too. It is using Olights dual direction clip which some love to hate. I will say my original clip on my i3T did snag not go back into shape. Olight did offer a replacement but it was only available in black, not the original PVD bronze copper it came with. It would be kind of nice if Olight included an extra clip with these special editions since they don’t seem to have spares.
LED & Beamshot
The i5T Cu here is running an Osram P9 LED in cool white. That said it’s not Olights typical 6500k, it’s warmer and more neutral, I would guess somewhere about 5500k or so. It does have a bit of a green tinge. The beam is using what Olight calls a PMMA lens. It creates a beam that is mostly a spot, with minimal flood. Good for EDC. There is a bit of PMW on low according to my oscilloscope and camera but I don’t notice it with my eye. If you are sensitive this may bother you.
Runtime & Heat
The i5T Cu is designed to run with 1.301.5V batteries so Alkaline and Ni-Mh batteries primarily. As you know from watching my other reviews I don’t run any light with Alkalines because they leak. Olight has provided the i5T with an Alkaline from the factory, so get it out and replace it with a high quality rechargeable Nickel metal hydride instead.
For my testing I used an Amazon Basics High Drain cell, Previous testing shows these are slightly above 2500mAh, so basically on par with Eneloop Pro’s for half the cost. Peak output is right at 300 lumens and the light holds this for a timed 3 minutes before stepping down to right at 50% output where it runs for for just short of 2 hours and 30 minutes before stepping down and ran at it’s lowest mode. This time was the FL1 standard of 10% relative output. It eventually turned off completely at 5 hours and 45 min. There is no Low Voltage protection built in to this light, so my battery had a voltage of 0.9V when I pulled it out. So when the light gets very dim, it’s time to switch the battery. Maximum heat I saw was 30.4C at the 3:30 mark.
I had read a few accounts of people running this light with Lithium Ion batteries so I wanted to test that too. Olight doesn’t recommend this and neither do I after testing. The light isn’t built for this at all, while it does substantially increase the output you will damage the light if you continue to do this due to the immense heat and increased voltage lowering the life of the LED. The light also doesn’t have low voltage protection so I used a protected KeepPower 800mAh cell to protect the battery from damage.
Total runtime with the Liion was 23 minutes to the FL1 standard, 31 minutes till protection kicked in. It’s a pretty linear decline until the 20 minute mark where voltage really starts having an impact on output. Temps are the big story here, this is the hottest light I tested when run this way and that makes sense given this is outside it’s designed mode of operation. Here a bit of a table of time and temps.
Time
Temp in C
Temp in F
0:00:30
36.1
96.98
0:01:00
40.7
105.26
0:03:00
53.4
128.12
0:09:00
69.3
156.74
0:15:00
72.7
162.86
As you can see the light gets dangerously hot, super fast. At 30 seconds it’s 36.1C at 3 minutes it’s 53.4C, at 9 minutes it’s 69.3 C, and at 15 minutes it’s 72.7C. To put this into a frame of reference most adults will have 3rd degree burns after 2 second exposure above 65C. So for this reason alone this light should not be run with Liion batteries it’s unsafe.
UI
UI here is super basic as it’s a 2 mode light. The light always comes on in it’s lowest 15 lumen mode and then if you press again you get the higher 300 lumen mode. There are no flashers or anything else. It would have been nice to see another mode to give you an ultra low 1 lumen mode.
Pro’s
Copper! With a great surface finish
Carries Well in the pocket
Good beam characteristics for EDC
Nice button
Con’s
Only Cool White is offered to the Public, there are probably better LED choices here too.
No moonlight mode
Pretty Middle of the road performance here. It would be nice to see 14500 support.
Conclusion
The Olight i5T Cu is a nice special edition light for general EDC, especially if you like the patina and characteristics that raw copper can develop over time. Olight’s timing is pretty good too with the positive antimicrobial characteristics of copper.That said you pay the price in weight here for copper, and I wish they would have went with a different LED and a more advanced driver. This is a basic light and it’s low mode is still too high for many who want a 1 lumen or less mode. Other then that it’s a nice high quality light I enjoy having around and I think you will too if you are a fan of raw copper.
If your interested be sure to check out my link to where you can pick this up on Amazon from Skyben trading.
Are you a fan of the FW3X series of lights but ever wished there was a right angle version you could use as a headlamp and had a magnetic tail? If so, your light has arrived, with the Lumintop HL3A, in a nutshell it’s a right angle version of the FW3A. Thanks to Lumintop for sending this to me to review. Since I have reviewed several other FW series of lights I will try to keep this review a bit shorter.
Packaging of the HL3A is similar to the other FWXX series of lights, but larger because of the additional accessories. It’s a brown retail box with a line drawing of the light on the front but limited technical info. Inside accessories include an extra o’ring, pocket clip, and a nice headband. The headband here is nice, it’s a 3 piece design and the elastic has the silicon grip material around the inside.I especially like the orange accents, it really brightens up the light and helps with visibility too.
Construction
The light is made from aluminum and is hard anodized in a fairly flat black. Machining here is good, what I expect from Lumintop. The tailcap here is magnetic and quite strong. It’s a one piece design with the body tube and features a small lanyard hole. The body piece has a square stubbled knurling that looks almost milled in place, it’s fairly aggressive for a headlamp. The threads are long on this model, raw, and square cut.
The head is kind of large to accommodate the 3 LED’s. It sticks out a ways from the body, more then most of your typical right angle lights. There are very shallow reliefs milled into the sides and tops, more for style then heat dissipation I think. Inside there are springs on either side of the battery. The button is large, and flat on the top of the light. It’s an electronic switch and presses easily and it should work with gloves well too.
Size & Weight
I measured the length of the light at 81mm, diameter of the body at 23.4mm, and length of the head at 34mm. Weight for the light with a battery without the clip is 102g.
For an 18650 headlamp the HL3A is quite short and small yet the head still has a decent amount of thermal mass. However this makes it less suited for pocket EDC in my opinion. The head just sticks out further then I want. That said the magnetic tail here is a nice addition and it’s quite strong.
The headband is good as mentioned before, it has an orange silicone mount for the light. While you can unthread the head while on the mount to change the battery it’s more difficult than removing the light itself.
LED & Beamshot
My example of the HL3A here is running three Cree XPL-Hi Cool White at 6500k. I like the XPL-Hi emitter but Cool White isnt my favorite tint. Thankfully there are other LED’s and tints available including Cree XP-L HI 5000k, Nichia 219C 4000k, and SST20 at 4000k. The XP-L Hi’s produce the most peak lumens at 2800, the Nichia’s about 1600 lumens.
The beam is using a Carclo style optic here, the specific part number isn’t mentioned but it does a good job of creating a flood. Good for even diffused light up close and decent amount of distance too at higher outputs. No complaints here.
Runtime
For my runtimes I used a Sony VTC6 battery. The light will accept button tops or flat top cells but for max output I would recommend a non protected battery and the light is using factory calibration. On turbo the HL3A instantly starts stepping down in output, possibly quicker then any other light I have measured. At the 30 second mark where the FL1 standard is, it’s making significantly less light than it does when you turn it on, but here is where I set the 100% of relative output. At 1 minute it’s making 50% of this value and at 2 minutes it’s making 20%. Here it remains stable for 7 hours of runtime before stepping down a few more times and running at its lowest mode. LVP here isn’t a defined value, just the lowest output. If you decide to purchase this light just expect the bulk of the output to be about 20% of it’s claimed peak value. That said this is more than enough for most close up headlamp tasks.
Maximum temps I saw during my runtime was 35.2 (95F) degrees celsius at the 35 second mark.
UI
The UI here is standard Andruil, and I think it ‘s pretty well suited to a headlamp. I will link to my FW3A review in case this is your first time seeing Andruil and include the diagram below. It looks a little complicated but once you get a hang of it, it works pretty well
Mechanical lockout here isn’t an option due to those exposed threads and single tube design.
Pro’s
Small and Compact
Andril firmware allows you to really set the light level where you want and need it for optimal runtime.
Several LED’s and tints to pick from.
Magnetic Tail
\Con’s
Max output starts decreasing almost instantly
Conclusion
If you need a headlamp with a lot of output for a very short amount of time with a good UI and good build quality the HL3A is a good choice. To me it’s disappointing how quickly it starts to ramp down in output that’s true of most of the FWXX series of lights, so it’s not surprising. That said I like the rest of the light quite a bit. Andril adapts itself well to a headlamp with either the ramping mode or stepped modes.
The Carclo style optic gives you a nice even beam that you can even customize if you wish by swapping it out. Modding potential here is pretty good as you can get easy access to the LED’s through the front. Other emitter mods, turboglow are all options here too. I think the reliability here should be pretty good too due to the design changes vs the FW3A. It has a single tube design, and no tail cap issues because there isn’t a tail cap. The head also has retaining rings inside so there is less to move around and cause an issue.
So if you love the FW3A and wished there was a right angle version to use it as a headlamp, this is your light. Go check it out.
Today I have a special light on my review table, the Frelux Synergy 2. If you are a long time subscriber you may remember that in October of 2018 I reviewed the original Frexlux Synergy 1 side-by-side flashlight. The Synergy 2 is the larger big brother and brings lots of new improvements and upgrades to the side-by-side format, and is almost entirely made in the USA. Let’s settle in for a longer review and look at the Synergy 2.
Packaging for the Synergy 2 is a custom made cardboard box. It’s basic, but neatly done with just the Frelux logo and slogan on the top. The inside flap has a quote and a US flag to remind you the light is made in the US. Inside, the light is protected by a laser cut black foam protector. Accessories are a Frelux sticker and little quick start manual with a link/QR code to download the full manual.
Construction and Machining
The Synergy 2 is made from US sourced 6061 aluminum. It is offered in a large variety of anodizing colors with Black, OD Green (what I have here), and a blue being the core colors at the time of review. The clip is made of grade 5 titanium and is also available in raw, gold, and blue colors.
It’s a side-by-side battery design, with the batteries in a parallel circuit. At the front of the light you have two brass contacts that have physical reverse polarity protection provided by a circuit board surrounding these contacts. The result is a light that’s a little picky on 14500 batteries if you decide to run those. Button tops are required, and watch the diameter of your cells too. Frelux has a list of tested batteries that are known to work with the Synergy 2, and it’s probably best you stick to those. VapCell’s 1100mAh models seem to be the best option (14.09mm). My 800mAh Keeppowers (14.41mm) were a bit too large in diameter.
The Internal Construction is a neat design; you have a brass threaded rod spanning the length of the light that threads into the head section, goes through the middle and tail section, and then the tail nut tightens everything in place and provides compression on the o-rings on each section to provide water resistance. The switch up front is an electronic switch, but it’s a very satisfying feeling too; it’s solid and crisp. The switch also has a mechanical lock feature which I recommend using during carry. Just rotate it clockwise and the button physically can’t press the e-switch. There isn’t any visual sign it’s locked, which is a little disappointing, but it’s an effective solution and keeps the UI simple. The Synergy 2 doesn’t carry a formal water rating, but Ben has tested it in a 8ft column of water overnight without a problem, so it should be ok in most situations.
The tail brings the light all together; externally it has a nice USA engraved on one side of the black button and the battery orientation diagram on the other. The tail nut is a cool piece it’s what holds the entire light together and holds the clip on the light (along with the dovetail) during battery changes via an o-ring, which is a nice improvement over the Synergy 1. Internally there is a circuit board with three springs-two for the batteries and one for the brass center rod.
Machining
One of the reasons why I enjoy this light is all the machining content that is shared on the Frelux Instagram page. I am a want-to-be machinist. I enjoy watching several YouTubers make stuff, and just want a machine to play with. Ben of Frelux produces these lights in his home shop with a Brother CNC machine. Make sure you check out the video version of this review for some of this machining footage.
What’s somewhat unique here is how he has setup the 4th Axis on his machine along with the four sided pallet design, to maximize his machining times and get the most work done per cycle. With the pallet design it’s almost like a 5th axis machine. He designed a tool that mounts in the mill to allow the mill to rotate the parts in the fixture and continue machining without human interaction. The Synergy 2 took all of this into account during the design process. It allows him to maximize his time while the CNC is running to get the next pallet of parts ready and do other finishing and assembly tasks. The end result is a light that was designed with production and keeping the overall final product affordable in mind. All tumbling and anodizing is done in house for tighter tolerances on quality. Even the soldering of sub components, finish assembly, packaging, and shipping are done at the Frelux headquarters.
Size and Weight
I measured the overall length at 95mm, width at 41.6mm, and thickness at 21mm not including the clip. Weight with Vapcell 14500 batteries is 6oz or 170g. This makes for a decently heavy light for its size and material. This design inherently has more material left after machining than a typical cylinder light. More aluminum could be removed through more complex machining internally, but it would greatly add to the complexity and overall cost. As far as competition there really are not many other side by side AA lights on the market to compare it to, so can we say class leading?
Retention
The retention of this light is interesting. I have to first start with the size and how that impacts its pocket carry. I enjoy carrying a 14500 sized light, especially in warmer months as I wear more shorts. Since cargo shorts are no longer fashionable or accepted in my house, the result is less pocket space and an EDC to suit. With jeans it’s a bit of a different story. I find that despite the added width of the side by side format, there is still room for the light in my left front pocket and my phone deeper down in the jeans pocket. It’s too big for the coin pocket that you typically find on the right front side of many jeans. This is where the Synergy 1 was just about the perfect size.
That said one of the Synergy 2’s new features is it’s tension adjustable pocket clip. This is a neat design, the clip is retained in a dovetail in the tail section and then the tail nut that holds the tail section on to the light controls the clip’s ability to slide closer or further away from the body, thus setting the tension. It can be very tight or fairly loose, so it’s adjustable to a variety of different pocket materials. That said the very end of the clip isn’t flared out much so it can sometimes be a little hard to get started onto a pocket. Frelux does include a small adhesive vinyl sticker to place where the clip makes contact with the body to help prevent excessive wear on the anodizing. It’s a nice touch but I wish more then one was included in the package.
Grip in the hand is still fairly comfortable. If I choke up a bit I can still get all 5 fingers on the light. It’s a kind of modified pistol grip, if your thumb is on the light jimping on the top, the jimping on the bottom ends up fitting well with my middle finger. I do wish the jimping was slightly deeper and a little more aggressive.
LED & Beamshots
The Synergy 2 is using a Samsung LH351D LED at 5000k and 90 CRI. This is a great emitter in my opinion and is quickly becoming one of my favorites that’s in current production. It’s a nice combination of tint, output, and high CRI. It’s surrounded by a smooth fairly deep reflector, with an anti reflective coated glass lens on top. There is just a hint of tint shift in the very center of the beam. I only noticed this when shining it at full power onto a white surface, it’s not noticeable during real world use. The resulting beam does have a pronounced hot center and ring at the edges before you get into the spill. Practically this isn’t a bad thing and the deeper reflector helps the light throw better than I initially expected. That said, I would prefer to see an orange peel reflector to smooth that transition out a little further.
This light is using a driver that Frelux had designed specifically for this light and it’s circuit boards are produced and populated in the USA. It has a ramping UI that I will speak more about here in a minute. The light is capable of running on the three most common chemistries of AA sized batteries. Standard Alkaline batteries, Ni-MH producing a maximum of 250 lumens, and Lithium Ion 14500’s producing a maximum of 700 lumens. The driver features memory, Low Voltage Protection(LVP), and temperature protection as well. No PWM was noticed with either battery type.
Heat and Runtime
I ran three runtimes a few times with this light to see the differences. I focused on rechargeable batteries since that’s what most people will run this light with most of the time.
For my test with 14500’s (Lithium Ion) I used 2x VapCell 14500’s. Mine happened to be flat tops which won’t run in this light, but thankfully some small 1mm magnets worked to get around this until my button tops arrive. I got three minutes of the highest output before this light stepped down due to thermals. As you can see the heat continued to increase here but everything was pretty tame, peaking at 33.4C (which is basically body temperature). It’s a safe temp, almost too safe, as I would prefer a bit longer runtime for a little more heat. From there the light ran at 42% relative output for 2 hours and 13 minutes, before stepping down to about 18% relative output and running for another 10 minutes before shutting off. LVP was measured at 3V for each cell.
Next for my runtimes I tried with some older Eneloops (4000mAh Total). Simply put the output here is extremely stable for the entire runtime, and the light ran until 2 hours and 20 minutes of output. The last test I did was with some Amazon Basics High Capacity Ni-Mh batteries. These are said to be rebranded Eneloop Pros but at about ½ the cost. Mine averaged 2475mAh each after testing the cells independently. Overall runtime here was 3 hours and 4 minutes. The extra roughly 800mAh buys you about 45 minutes of extra very stable runtime. Heat on either Ni-Mh was basically ambient temps.
While the light does run on the three different chemistries of batteries, it’s my opinion that the best option is really lithium ion 14500s as these give the most output and still a good amount of runtime for an EDC style light of this size. Alkalines should be the battery of last resort due to their lower output and potential for leaking; it would be a shame to damage the light from preventable corrosion. Since the batteries are in parallel the light will run with only one battery if you wanted. Same outputs, but just less runtime. It can be a weight savings measure or if there was only one cell left in the package in an urgent situation.
The driver has one odd quirk that you should be aware of if you run the light until low voltage protection kicks in. If it takes longer than 30 seconds to change the batteries there is a good chance the light won’t turn back on with fresh cells. The solution is to just leave the tail piece off for 2 minutes to reset the driver. The technical reason for this is there are two sets of code for each voltage range the driver operates on. This could have been eliminated but it would have increased the driver’s parasitic drain, which no one wants.
UI
The Synergy 2 is using its own UI system, but don’t let that be a worry. It’s simple and familiar. It’s a simple ramping UI. From off, a long press of the button will give you a shortcut to the lowest mode of output. From here a long press again will start the light ramping up in brightness which takes about 2 seconds to reach the top output. Unlike other flashlights there is no flash to let you know you’re at the top or bottom of the range, but this isn’t an issue as the light just stops and doesn’t cycle over. While ramping you can stop anywhere and press the button again to reverse your direction of the ramp. Double press from on or off to jump to maximum output. There are no blinking modes on the Synergy 2, and I don’t miss them personally.
Pros
Great emitter choice, nice tint and high CRI
Multi Chemistry battery support (Alkaline/NiMH & Liion)
Impeccable Fit and Finish
Made in the USA!
Lots of color options but they are not always all available or published.
Cons
No moonlight mode, lowest mode of operation is approximately 2 lumens with Ni-MH batteries and 5 lumens with 14500s.
The light is a little picky about the length and diameter of 14500s
The side-by-side format takes up a decent amount of pocket real estate.
Conclusion
The Frelux Synergy 2 is a unique light in the flashlight market. It’s a custom light in the sense that it’s made by one man in his garage in the USA, to exacting standards. Everything about it but the LED and eSwitch are custom designed for this light and made in the USA. Ben machines the light himself, anodizes them inhouse in a variety of colors, solders the USA made circuit boards, and does final assembly and testing himself (and sometimes with the help of the kids). The result is a light that has very tight quality control and superb attention to detail.
It has creative design features too, like you can mix and match body pieces with other Synergy 2’s to create your own color and button combinations. The door is open to different materials for the body sections and buttons too, if he chooses to make this not only a custom light but a highly customizable one too.
The adjustable tension clip is a smart design that I find works pretty well, and being deep carry I find it’s retention is good tool. It stays in place too during battery changes, which is an upgrade over the Synergy 1. This isn’t all the clip does though; it can also be used to tighten the brass nut that keeps the center section mounted to the head too.
The Synergy 2 does all this at a price that’s less than your typical custom light that’s made in the USA. It’s a light I have thoroughly enjoyed watching develop on the Frelux Instagram account, and mine will definitely be in my EDC rotation. I imagine I will carry it more when I am wearing jeans vs shorts due to its width, but that’s largely a personal preference with how I carry a knife and smartphone too.
These are truly custom made lights at this point, with Frelux taking preorders and then producing lights in batches and finishing them to your color specifications. So if you are interested in one, be prepared for a potential wait. Wait times so far have been fairly reasonable in my experience, with Frelux being careful about how many preorders they take. So if you want one, make sure to join the Frelux Facebook page and follow them on Instagram too so you know when preorders open.
Overall this is a fun light and one you should definitely check out if you want to get something unique, custom designed, and made in the USA.
