Not sure exactly what size driver will fit in. It’s larger than 17mm. I think maybe 20mm.
HOWEVER… the biggest problems is that the original driver includes both the driver and emitter on the same board. This allows for the most compact light possible, but unfortunately doesn’t allow you to simply swap in a new driver. Any new driver you could buy won’t have the emitter on it, and there isn’t room to install a single-emitter star, the optic and a new separate driver board.
Essentially, if you want more power, the only option is to convert this light to a triple. The Carclo triple TIR optic is 7mm shallower than the stock TIR. This frees up enough space to mount a star in front of the driver.
I think your heatsink (is it thermal glue?) is a bit too thick. The top of your carclo sit’s a bit too high for the gap to close on the bezel. Does the carclo slide all the way down? I had to sand off the edges a bit.
Or maybe you can sand down the heatsink. Or the noctigon board a bit, but that is not really nice for the already limited heatsinking maybe.
Or place an (O-)ring to fill the gap.
I don’t know these nichia’s you used. Tint looks nice. Is it bright?
I’m looking to mod a second one with the new noctigon board with the small added pad for a locator led and high cri nichia’s. Someday :person_facepalming:
Worked out nice for you! It’s really my favourite small powerhouse.
Really nice job.
>I don’t know these nichia’s you used. Tint looks nice. Is it bright?
Not bright. I’m like it
It’s warm white led (2500-2700K)
0,01А-0,25А-1,05А - after change SMD resistor R35 for R50
Turbo 2,25А http://forum.fonarevka.ru/album.php?albumid=1062&pictureid=15254
i have had one for about 9 months
used normally
last week the switch broke off the circuit board
kind of a bad design
pushing the button strains the 4 solder joints every time you press
be prepared for it to not last forever
i emailed david, the creator, he seems sympathetic but does not offer help
so far
i used to be a fan of this light
but i have had one for about 9 months, normal use, and the switch just broke off the circuit board
this is a weak design
every time you press the button, it stresses 4 tiny solder joints holding the switch on the board
sooner or later it will fatigue and fall off
Wle, that is good to know, on the III version, the switch is body mounted, and mine is still going strong. I use the IV version as a back up anyway.Thanks for the update!
I have a few questions about the DQG 18650 Tiny 4th that I couldn’t find answered anywhere.
1) Is the driver in the light really constant current regulated? That doesn’t seem possible since the driver board seems to lack an inductor (though I can’t find a picture of the bottom of the PCB). At best it seems like it can maintain constant current only as long as the battery voltage stays above Vf using linear regulation or high speed PWM control (though I didn’t see a MCU either). The CNQG page, just says “Current Regulation”. I didn’t see any runtime vs. output graphs anywhere that would shed more light on this.
2) Can it fit protected 18650’s that are ~70mm long?