Wurkkos HD20 Review (LH325D, 5000k, USB-C PD, 21700, Headlamp)

Last year I did a review on the Wurkkos FC11, and that light has gone on to become one of the most often recommended lights over on /r/flashlight for good reason. Well today Wurkkos has the new HD20 headlamp. It has 2 emitters including high CRI with neutral white, a 21700 battery for long runtime and USB-C charging that supports PD, all for an affordable price. Thanks to Wurkkos for sending this to me to review. 

 

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Pickup the new Wurkkos HD20 on Amazon at https://amzn.to/38IennG 

Discount: Use the code 3F8GNFJO for 20% off also there is a 5% coupon on the page, for a combined 25% off the list price!

 

Packaging & Accessories

Packaging is a plain and simple orange box with just Wurkkos name on it, I suspect this is one they use with other models too as it’s just slightly too small for this light and there are no descriptors on it. Accessories include the light itself, a 4800mAh 21700 button top battery, elastic head strap, 18650 battery adapter, pocket clip, bag of extras including wrist strap, and 2 spare orings, USB-A to USB-C cable, and a manual.

Construction

The Wurkkos HD20 is made from aluminum, and anodized in a semigloss black. I found no issues with the machining on the light. The tail cap is flat and has a strong magnet that allows the light to safely attach on to any surface I have tried it on. There is a lanyard attachment point on the tail cap as well as some straight knurling. The spring inside is short but stiff.

Threads on the body section are square cut and dry. The body tube itself has ripples for grip and reminds me of a larger version of the Prometheus Beta series. There is a place for the clip to attach at both ends and this also where the straps for the head mount live. 

The head itself is quite long and has a good amount going on, the side has a few areas milled out for design, weight reduction and heat dissipation, including a large milled area in the back that’s a bit unique, as is the knurling on the back side of the head. This does give a bit of grip to turn when  mounted up. The USB-C port is covered by a large silicon cover that does fit the contour of the light well. On top is an Eswitch with translucent silicone cover and LED’s under to give an power level reading. It has a blue ring similar to Olight around the switch. This button does sit proud so it can’t headstand.

 

At the front you have the two emitters, The top being the spot, and the bottom being the flood. Both have aluminum bezels around them that look to be screwed in. The top has a TIR optic with glass over top and a flat front. The bottom uses a diffused lens. The light is IPX-68 rated

 

Size and Weight

Maximum length of this light is 122.5mm, maximum diameter at the head is 30mm, minimum diameter on the body is 26.7mm. Weight with the light, battery, and head strap is 202g. For comparison the Acebeam H30 (Also a 21700 light is) 190g. So it’s in the ballpark but a bit heavy.

 

Here are a few comparison pictures with the Acebeam H30.

 

Retention

The strap is made from a silicone material, it’s the loop type that holds the light in place and allows it to rotate up and down. Attached to this is a basic 3 way elastic band. It’s a less expensive headband which is ok for the price here but functional. I found it only moderately comfortable, the entire setup isn’t’ lightweight, so you need it reasonably tight to keep it in place. I found a bit more comfort if I tightened the top strap to let it carry a majority of the weight. 

A pocket clip is an option on this light, but not one I think will be used very often. It can mount on the top of bottom of the battery tube, head down would be the only way I would attempt to carry it due to how much of the head sticks out if mounted the other way. You could use this to mount to a hat with the 2 way clip but I don’t think this will be used much due to the weight and the fact that it’s a right angle light. To me the pocket clip is pretty much useless but nice that it’s included I guess.

LED & Beam

This light uses 2 LED, for 2 different purposes. First you have the Floody beam of the Samsung LH351D in 5000k at 90CRI. This is the bottom emitter on the light and is rated at 700 lumens. The beam it creates is a smooth even flood, it’s everything its described as. Looking inside it looks like it has a TIR style optic with a diffused lens.

The other LED in use here is the Cree XPL HD for the spot emitter. It’s also in 5000k but only at 70 CRI. It’s the larger emitter on top of the light and has a TIR style optic that creates a spot style beam. The spot is reasonably large, with very little spill. Maximum output here is 1300 lumens.

When used together you get a blend of both worlds. The tints here for me matched well enough I couldn’t tell which emitter is which in just tint. The beam shape isn’t perfectly round which isn’t unexpected. If being used as a headlamp it’s a wider than it is tall.

There is PWM in all modes on this light other then moon and Turbo. Below is a sample of what my oscilloscope showed for both emitters on all modes, and then a sample of what each single emitter showed on medium. I don’t notice it with my eye.

 

 

Exact outputs vary with each emitter, the LH351D topping out with 700 lumens, and the XPL HD at 1300. Combined they make 2000 lumens. Here is the runtime chart showing the different outputs for each mode and emitter. 

 

Heat and Runtime

I ran both emitters with the included 4800mAh battery on maximum brightness, and turbo output held peak output for 2 minutes before stepping down to 20% relative output where it cooled down and then began an oscillation with it’s aggressive active thermal controls of regulating the light between 18% relative output and 40%. This goes on for nearly 3 hours, before the last 30 minutes the spike is larger 15% to 70%. The last hour is a linear decrease to zero. Total runtime was right at 4 hours. Max heat was 42.5C at 2:50.

I then did runtimes with each emitter independently. Both were very linear non regulated input for the most part. The flood emitter which is less bright over all (700 lumens) lasted 10:10:00. The spot emitter lasted an impressive 14:31:00. 

 

UI

The basics of this light work like you think, click to turn on, long press to cycle through it’s 3 normal modes. Double press to go to turbo. When off, long pressing turns on moonlight mode. The blinking modes require you first to go to turbo then double click again, double clicking each time to cycle then between strobe, sos, and beacon. A single click exits any of these. A triple click allows you to check battery status via the switch on top. 4 fast clicks enters and exits lockout. 

 

Switching between the LED’s is describe in the manual as when the light is on just hold + click + hold. It sounds easy but in practice I have struggled with getting it right the first, second, or third time when I want to switch, it’s frustrating to say the least. 

 

There has been some talk of minor firmware bugs with memory on BLF threads with this light, to me they have not been obvious enough to spot without reading about them first. It’s not uncommon for a manufacturer to update the firmware without telling anyone on the next production run. The FC11 got a revised firmware very quietly. 

 

Recharging

The light has onboard USB-C charging on the back, and the most exciting part is it’s compatible with USB-C to C and USB-C PD. This is the first headlamp I have tested that’s this way, and it’s fantastic. It only took till late in 2020! 

My recharging test was with the included 4800mAh 21700 battery, This is a standard battery I charged from LVP at 2.737v to Full at 4.123V in 3:21:29 which isn’t too bad for this large of cell. The light charged at 2.1A for the first 1:30:00. 

The light can also be used as a powerbank on some phones. I didn’t log any data when trying this but I can tell you that my Samsung Note 8 charges fine with this light and a C to C cable, but my ipad doesn’t recognize it as a power source. 

 

Pro’s

  • Great value, budget friendly, but good quality, full kit.
  • Neutral white with both emitters and high CRI with the flood, Now only if they would go high CRI with the entire light.
  • Supports USB-C to C charging with PD! First headlamp I have tested to do this. 
  • It also acts as a powerbank for some phones.
  • Strong magnet that has no problem holding up the weight here

 

Con’s

  • Pretty heavy, not small
  • Nice that they included a pocket clip but for me it’s pretty much useless here.
  • Switching between LED’s seems to fail at least 50% of the time, this could be me or just a UI that should be better.
  • The head strap could be higher quality.

 

Conclusion

I think Wurkkos has another hit on their hands with the HD20 if weight or size isn’t a big factor in your decision to buy a headlamp. This ticks a lot of my boxes for a headlamp, the biggest being a neutral white light with a pleasing tint, and at least one high CRI option. The long runtimes here are nice too, but you pay the penalty in size and weight from the 21700 and large head.

The biggest areas I see for improvement is a higher quality head strap that’s a little more comfortable. This isn’t a small headlamp so you notice the weight after a while. After I adjusted the straps to take more weight over my head it got a little better. 

 

It’s so nice to see true USB-C support here, it charges via USB-C to C and USB-C PD. You don’t see a speed increase with PD but that’s ok. Not many flashlights at all price levels support this, and as a result it can even be used as a powerbank if needed. 

 

At the time of filming this is right around the $40 price mark, thats a lot of value and I can recommend the Wurkkos HD20. Right now this is my pick for the best large headlamp to buy for Q4 2020. Wurkkos has offered a 20% discount on this light if you buy it on amazon with the code that’s in the description so make sure you check that out to save a few more dollars. 

 

Pickup the new Wurkkos HD20 on Amazon at https://amzn.to/38IennG 

Discount: Use the code 3F8GNFJO for 20% off also there is a 5% coupon on the page, for a combined 25% off the list price!

Jetbeam RRT01 Review 2020 Version (Rotary EDC, Nichia LED, High CRI, 950 Lumens)

Jetbeam has a new version of the RRT01 Raptor out for 2020. If you remember back to last summer I reviewed the 2019 version of the light and loved it. The 2020 version adds an Optional Nichia emitter and changes how the rotary ring and UI work as well as being more flexible with different battery versions. Thanks to JetBeam for sending this to me to look at and review. 

 

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Versions

There are now 3 versions of the Jetbeam RRT01 that all share the same name. There is the original from about 8+ years ago, the 2019 version and now the 2020 version. Each having their own differences in performance, batteries, and LED. I do wish JetBeam would have added a V1, V2, V3 or used a different name with the light so it was easier for the consumers to tell the difference. The easiest way to tell the difference between the 2019 and 2020 is to look at the tail. The 2019 has a place for 3 tritium vials, whereas the 2020 has a button on the tail cap.

 

Packaging & Accessories

The packaging of the RRT01 is very Jetbeam, it’s a blue and black retail hanging package with all the details you need on the outside and side panels. As far as accessories, it depends on the version you get. My kit has the optional 2x extensions tubes that allow you to use 18500 and 18650 batteries in the light. In addition to this  it comes with a 1100mAh JetBeam branded 18350 battery with microUSB charging onboard, 3 extra  orings, an allan key, 2 extra screws for the clip (Not torx), and replacement rubber boot for the rear switch in gray. You also get a lanyard, manual, and other paperwork. 

 

Construction

The light is made from aluminum and anodized a warmer light gray with the control bezel being a silver. It’s nice to see a different anodizing color here. Machining is very good. Starting at the tail, there is a bezel around the center mechanical on/off button. When the button is in the off state the light doesn’t tail stand super well, but when the light is on the button has retracted enough that it tail stands great, so really a pretty thoughtful design as it helps you find it when you want to turn the light on. 

The body section of the light has knurling around it with 2 flats with the minimal labeling on each side. The light then grows to match the size of the head and control ring. Threads are wide, square cut and non anodized. By default the light will fit 18350’s and CR123A batteries which are great sizes for EDC but if you want more runtime you can insert one of the extensions and use a 18500 if you have them or add both if you want to use a 18650. Just remember to use a protected battery as this light doesn’t have LVP. When the extension are in place it’s a little less elegant I think and heavy in the head. 

 

The rotary control ring has some areas milled into it to give grip. It has a detent on both ends of the control area. From 0 to 100% is about 160 degrees of rotation. There is no detent in the control ring for the 2020 version of the light. The ring moves quite easily, I would like to just touch more resistance. The rotary really allows you to dial in the exact amount of light you want very quickly.

The head has an aluminum bezel that’s mostly built into the light and not proud. It is not glued but you will need a tool to get it loose. The glass lens is double anti reflective coated and it has a deep reflector with a light orange peal.

 

Size & Weight

I measured the length at 91mm in it’s shortest configuration. Each extension adds 15mm to the overall length of the light. Maximum diameter on the head of the light is 26mm, and minimum diameter at the head is 24.5mm. The extensions are slightly larger in diameter coming in at 26.46mm vs the 26mm of the head of the light. 

Weight in it’s shortest configuration with the included battery and clip is 114.6g. With a 30Q and the 3x extensions came in at 153.9g. 

 

Comparisons

The most obvious comparison with the RRTR01 2020 is the 2019 version and the lights look very similar. The largest difference is that the 2019 version is shorter without the tail switch. The lens’s are a little different too, the 2020 lights lens has a light orange peel and is deeper and the bezel is smooth. The diameter of the head is slightly longer too. The extension tubes fit either light. When you put the extensions on the light looks a little funny to me, it seems longer and the proportions are just off a little. For an 18650 light it’s a little on the long side when compared to the FW3A. 

 

Retention

The RRT01 like it’s predecessors are using the “standard” steel flame pattern clip meaning most aftermarket clips on the flashlight market should fit here. THe stock clip is a little longer than many at 61mm. The screw holes are hex head instead the more common torx. 

 

In the pocket it carries reasonably well. The slotted tail bezel that’s around the tail button sticks up a little more then I want but does protect the button well from accidental activation. It’s still deep enough I consider it deep carry. I found the short length to be about perfect in the pocket, it’s doable to carry with the extensions on and an 18650 but it’s center of gravity is more to the head. 

 

LED & Beamshots

There are 2 LED’s offered in the RRT01 Raptor (2020), a Cree XP G3 offering 80 CRI, and a Nichia 219C at 90CRI. I have the latter and it’s a nice warm 4000k. For me this is a great combination of tint and high CRI. JetBeam claims both are rated for 950 lumens, and that would be higher then I would expect out of a Nicha 219C as they typically don’t put out quite as much light as the Cree XP G3, so I take that with a grain of salt. It’s enough light to do the job easily. The beam here is nice for EDC, it has some center spot, about 20% of the beam and then fades to a useful spill. The rotary is very smooth and makes this light infinitely variable sub lumen up to 950. See the video version of this review for my Nightshots.

 

Heat and Runtime

Runtime here is very linear, I started my test with the included 1100mAh 18350 battery on full power. Output here was very linear and seems to not be regulated super well. There really isn’t much of a stepdown and the light ran above the 40% relative output out until 28 minutes. At 34 minutes the light shut off when LVP on the battery kicked in at 2.94V. The runtime here surprised me a bit, it’s rather short but then again this light doesn’t have much of a step down. It does get warm and the highest temp I saw was 59C around the 17 min mark. 

I then tested with a 3000mAh 18650 battery. You need to use a protected battery with this light, I didn’t do that my first test and the result was the light ran until the cell was dangerously low right at 1V. I was not happy about ruining a battery here, but the result was significantly longer runtime. FL1 was at about 95 minutes, total runtime was just at 1 hour and 40 minutes. You can see thermal regulation kick in at the top end a bit. 

 

UI

UI here is pretty unique to most other flashlights but it works pretty well. The RRT01 2020 version adds an on off switch at the tail of the light and combines with the rotary function in the head to change the brightness of the light. Once on rotate the ring to the right to increase in brightness, increase to the left to decrease in brightness. It is truly infantly variable as fast or as slow as you want. On my light I can turn the ring about 1/12 of the way before the LED begins to turn on. 

 

This light does have an infinitely variable SOS and strobe modes as well. When on just rotate to to the maximum brightness setting and then to the left slightly 3 times and you get SOS, do this 4 times to get strobe. You can then dial back the brightness if you want. To exit just turn the light off and it goes back to normal.  

 

Recharging

The light includes a 1100mAh Jetbeam branded 18350 battery that has onboard microUSB that you plug into the side of the battery. It has a multicolor LED on top that goes red when charging and green when charged. LVP is built into the battery and it stopped at 2.94V. Charged it stopped at 4.16V. When I plugged it in to charge I did notice the top of the cell got pretty warm, about 110F but this quickly dissipated. My guess is it’s doing this at first to gradually limit current going into the battery at the start of a charge. Overall the battery took 92 minutes to charge, and the maximum charge rate I saw was around the 70 minute mark at 1A. It’s a little odd to see that high of charge rate at the end of the charge cycle. 

 

Pro’s

  • Nichia LED, my biggest complaint with the 2019 version of this light was the LED that was chosen.
  • I am a sucker for a rotary interface, it works here well but requires shifting your grip to turn on then adjust the output.
  • I like the anodizing color here, a warm gray, almost sand color.
  • Nice overall EDC light with options to go to 18650 too.

 

Con’s

  • No Low Voltage Protection, must use protected cells if you plan to run the battery to exhaustion,. . 
  • A little awkward with the extensions installed, it throws the balance way forward.
  • Confusing naming with the previous versions of the light.
  • On the expensive side with the extension kit

 

Conclusion

The JetBeam RRT01 is the 3rd irrieteration of the light that shares the same name, while confusing for customers it’s a light I am enjoying. I really like rotary interfaces, I think they should be done on more flashlights as it’s intuitive and easy to operate for people of any age. The addition here of the on/off button on the tail instead of detents in the rotary makes the light less likely to come on in a pocket or when not in use but I think detracts from the overall rotary aspect of the light That said it still works pretty well but just requires you to change grips when using the light to turn it on and adjust the output.

The inclusion on some version with the extensions is smart, allowing you to use more battery types, it’s kind of an after though on design but it works reasonably well, especially if you want the extra runtime of an 18650, just be sure to use a protected battery since the light itself doesn’t have LVP. 

The optional Nichia 219C emitter here is great. One of the features I liked least about the 2019 version was it was cool white and it’s great Jetbeam listed to this user feedback myself and others had. Overall this is a fun edc light, it’s a little on the expensive side but one I can still recommend. Make sure to check my links in the description as I will list any coupons or sales I get where you might be able to get a discount. 

Banggood has a 30% off coupon for the 2020 version of the Jetbeam RRT01 at https://ban.ggood.vip/V8ca by using code:  BGRRLM