Today I have a review of the Sofirn SP40 budget headlamp. Sofirn continues to bring out affordable products and take feedback seriously. I have had this one for a while and have been using it for various things around the house. Thanks to them for sending this to me to take a look at review on the channel. Let’s take a closer look at it.
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Packaging & Accessories
Sofirn’s packaging is very basic and I am ok with this as more money is going to the product and accessories then the packaging. Inside the basic brown cardboard box the light is protected with some foam and bubble wrap. Included accessories are the headlamp itself with the Sofirn branded 3000mAh 18650 battery preinstalled, pocket clip, 18350 tube, headband, and spare orings.
The light is made from anodized aluminium. Machine and finish are good for the price range here. The tail is flat, and non magnetic. The light comes into 3 pieces with the other spare body tube being the 4th. There is standard diamond knurling on the tail cap as well as the body. It’s a little more on the aggressive side and I expect it will pick up dirt over time.
The headband is a 3 piece design, and while functional, the straps do feel a bit more lightweight and thinner then other headbands I have from Olight, Armytek, and Klarus. That said this light is a lot less expensive. The headband has 2 silicone loops in front to slip the light into. On the 18650 tube there are 2 areas milled in without knurling where these rest. For the 18350 tube you kind of just have to make it work, and for me the loops ended up sitting on the knurls. There is also a press on friction fit pocket clip thats included on the light. With the 18650 tube it can be oriented either direction. With a head up carry a lot of the light sticks up from you pocket so a head down would be the only way for me. On the 18350 tube the clip really only fits on in one direction to remain on the light. This isn’t my favorite EDC because of how it carries but I am glad they at least include it. One last thing to note is that you should remove the clip prior to putting on the head strap.
The head is fairly flat but with rounded corners on the emitter side. The rear is rounded and there is minimal milling for heat and weight dissipation on the sides. The USB charging port is opposite and below the emitter but still on the head. ON top is the button for controlling the light, as well as being a charger status indicator. Red is charging, green is charged. It’s a clicky e switch covered with a translucent silicone cover.
Size/Weight and Comparisons
I measured Length at 107mm, Body Width at 22mm and maximum head width at 27mm.
Weight with the included battery is 105.4g, with the headband and battery it’s 141g.
The Sofirn SP40 looks like other headlamps we have seen for the most part. Today I am going to do some quick comparisons with the Armytek Elf C2 I have here because it’s one of my favorites, is similar sized, and has USB recharging onboard. Length wise the Elf C2 is a bit longer but it’s tail is magnetic. It’s head is also a little wider, probably due to the button being on the side instead of the top. The clip is a lot better for EDC in my opinion and is heads up, vs the SP40 would be best as a tail down carry. Both fit in their respective headbands in a similar way.
The SP40 is using a XP-L LED in cool white but not super cool tint. I would guess something like 6000k. While I wish it was a neutral white this is ok for the price. The beam is pretty standard, with no major artifacts. ItThe reflector has orange peel and the lens is clear anti reflective coated. Since it doesn’t have a diffuser or TIR optic it does have a hot spot in the center and isn’t super even. The light does have PWM and I don’t notice it on any of the modes.
Heat here isn’t too bad. During my runtime tests I measured the light at several intervals and found the following temps. 1 minute was 93F, 5 minutes was 115F, and 10 minutes was 111F.
Official output is listed at the following
Low – 5 lumens
Medium – 90 lumens
High – 450 lumens
Turbo – 1200 lumens
The UI is pretty simple, and straight down to business. From off and you turn it on and the light starts on low, if you long press while the light is on it will move up to the next brightest mode. If you hold it down the light will cycle between low, medium, and high. The light won’t go into turbo without a double click while on. The light does have memory for all modes except turbo. Lastly there are no blinking modes.
The light does have onboard micro USB charging on the head. From an empty cell at 2.76V where LVP kicks in, I charged the light to full in 4.8 hours at an average of 0.9A. This is an acceptable charge rate, and should be safe for any 18650 that’s installed inside, but you won’t be winning any charging races here. For an 18650 it’s safe but probably a little higher then I want to charge mine at typically. I have no complaints with the included 3000mAh Sofirn branded 18650 battery.
- Great included accessories including the 18350 tube and 18650 battery
- Fantastic value for what your getting with the kit, including the battery, USB recharging, etc
- Head Strap is a bit thinner than other brands.
- Current regulation isn’t the best.
- No tint choice available.
For the price, flexibility, and fast shipping if purchased from Amazon, I am not sure if there is a better value 18650 headlamp available for less money that includes USB charging. There are other headlamps I rate as overall better, but their prices are significantly more. The Sofirn SP40 provides a good amount of working light for most jobs in most situations, has onboard charging for convenience, and includes optional extras like the 18350 tube instead of making them an optional extra. This would be a good option for someone looking to grab a bunch of headlamps for work, or to loan out, or give as gifts as it’s a complete kit and easy to use.
Headlamps are something I think everyone should have as they are extremely useful around the house, and anywhere you are working on something where 2 hands are preferred. If none of that applies to you, this still makes a decent right angle EDC in the pocket too.
Get the Sofirn SP40 for $23.19 by using code D3BUSFJM at https://amzn.to/2ZrEY44