I got mine yesterday. I charged 2 batteries in it and both came off at 4.18 volts. The current draw went from .5A to 0.05A when charging but I have no way of monitoring what the voltage was.
I bought 4 of them and they are worth it
The led tint is good but the output is shit. I’m have swapt the optic with 60* flood beam which is very pleasant flood.
Planning to mod this lamp to pump more lumens as the body can handle more heat .
Has anyone open up this thing?
Ah… So I would love to know. I’ve heard it is not easy but I believe one member did get it open. Resistor mod?
I will give it a go this weekend
I think the first thing is to remove the plastic tube inside then the rest can slide out
This lamp have much more potential then the stock lamp and it’s not bright enought for my liking.
Cross-ref to new thread:
Tear Down (and upcoming mod) - Boruit RJ-02 Headlight (Pic Heavy)
http://budgetlightforum.com/node/48353
I got 2 of this one works one has strange issues I open it up and there you can see the driver and led it’s easy to mod but I got no oder what parts wrong in mine and what parts could be changed to better ones to get more lumens. I guess just the led alone won’t make a big difference
Like mine, but it’s a bit weak. Lurking here waiting for a mod 
I honestly can’t figure it out from the posts. Please can anyone tell me how the LED is hsatsinked? Is there anything behind the pcb when installed in the light? Thanks
eebowler,
By the little board it’s attached to — look at the pictures at the linked “Tear Down’ thread — see the picture with the caption that says
I saw that and hoped i was just misinterpreting the info. Thanks
I received mine…and i can say the output is really nice, i think a headlight can be max 300lumens…going higher can only decrease runtime, and here there is only space for 1 battery…not 2 or 3 in parallel.
I think for this little price this is THE HEADLIGHT. Microusb charged well it…voltage perfectly 4.19v
Wow I missed this light! I’m going to have to pickup a couple (a 2nd so when I screw up the 1st one I have an extra).
-Garry
Several prior threads discuss this same light.
I got one a while back, put an elliptical TIR
https://www.google.com/search?q=site%3Abudgetlightforum.com+elliptical+TIR
into it to make the beam spread out sideways, and it’s reliably useful.
I ordered and just received two of these lights. Of course now that I have them, I see that GearBest has them on sale for $8.99.
Since I also recently received some XP-G emitters, would these be an upgrade to the noname emitter in the light? I’m not looking for huge output, but if the XP-G is more efficient, the battery will last longer while working or hiking.
This flashlight usable only in high mode. In any other modes it has very low frequency PWM (1 kHz).
That will depend on what beam pattern you seek. When I swapped in an XPL, it about doubled the output and reduced the heat. But it made the beam too throwy for what I used a headlamp for. The stock emitter has a large emitting surface.
I actually bought another on of those headlamps a while back to keep stock. I like the even beam and tint and handless switching feature for working on stuff I use a headlamp for. For walking, hiking, etc, I prefer more output.
Now that I have a couple of these, I’m trying my hand at creating a bike mount. I looked for ideas and got locked into an idea that would not work as a 3D printed part, but turned out well.
Once I had the bike, the light and the failed idea in the same space I came up with a simple solution that seems to work.
The zip-ties allow for adjustment up and down but it is stiff enough to stay in place. I have not taken it out for much of a test ride yet.
Does it have visible PWM pattern in all the modes?
My camera picks it up, but I can’t see it with my bare eyes.
If you’re sensitive to pwm you might be able to see it, but I think most folks are not sensitive and wouldn’t see it.