[Review] 77 Outdoors D25 Headlamp (18650)

Up close (say within the first foot or so) the beam is a bit wider. But once you get further than that away from the light source, a position offset of 3/4” or so doesn’t really make a lick of difference.

Garry has a few disassembly pics at the end of his first post in this thread (as a side note, I see his switch also had a debouncing capacitor+resistor… they must have changed to software debouncing later on). There might be more pics later on, as well. Good luck with getting it apart. You’re trying with the USB cover tightened down towards the emitters, right?


I did it hard way… This is modded ak-47A with 10 step ramping firmware :smiley: :+1: :beer:

I won’t say that porting code to run on a different family of microcontroller is necessarily “the easy way”, but it certainly looks like you did choose a hard (but effective) way! :beer:

Think so... I'm at work right now, maybe in an hour or 2 can take a look. Not sure I understand the importance of having the button/driver end tightened though - maybe I didn't? Oh boy - let me look again.

What kind of driver could it be replaced with? Mine’s elsewhere at the moment, so can’t really check. :neutral_face:

Imagine any driver that takes an e-switch (eg, SP10?) might do it? “Standard” 17mm?

I don’t like resistor-type “regulation”… would be nice to have something more consistent.

Also, the “glue” that holds the mcpcb… hard like epoxy, or rubbery Fujik-like stuff? If the bezel could hold some TIRs in place, a pair of regular mcpcbs can be “floated” on the shelf with regular thermal goop (eg, AS5) once it’s cleaned.

It might not really matter, just worth a shot if nothing else is working.

I’m not sure if much will be very “drop in” worthy. I thought about designing a driver for it, but I’m not sure if it’s really worth it at the moment. The MCPCB adhesive seems to be the rubbery white stuff. I think a TIR works in the single emitter version, but not really this one. I dunno, maybe some small AAA light ones would work.

Hmm…

I just measured the reflectors: 15.9mm wide by 7.0mm tall. I haven’t shopped for TIRs much. Is something close to that available?

I tried a few more times, lot more force in a wood lined vise and nothing. Almost broke my best needlenose, and I got an adjustable spanner tool - bent the points on it, then sanded the off to get a better fit in the holes, got plenty of leverage and only accomplished some deep scratches off the holes. Mine seems to be sealed solidly, but it's still fine to use as-is.

:cry:

Stock “20mm” TIRs sometimes actually run about 21mm. I’ve only really seen 20mm and 26mm (barring triples/quads), but someone mentioned another light that took smaller TIRs.

I wonder if boring out the bezel a coupla mm would let regular TIRs fit…

Well here ya go…

https://www.aliexpress.com/item/5050-LED-Lens-Diameter-17mm-45-degrees-CREE-XML-T5-T6-U2-Lens-XLamp-XM-L/2035917021.html

Little doodads around the periphery and at the pointy end, can probably be shaved down a bit to fit the bezel nicely.

7bux (+3bux shipping) for a 20pak. Gee, that’s enough for 10 headlamps…

Eh, wotdahell. Ordered a pak of the 60s…

I was actually glancing at those. I think the diameter will be fine with a little sanding, but I’m concerned with the height. I’m curious to see what comes of them. Let us know (in a month or so!)

Wellp, with TIRs in there, I ain’t gonna need the front glass, so that’s at least a mm gone. I figure it should fit as-is for the most part.

Worst case, lap the living Hell out of the back of the replacement mcpcbs.

D25 is not as good for modding as D10: non standard, hard to remove led plate; non standard lenses, plastic bezel and you have to buy 2x leds and lenses instead off 1 like in D10. In my practical use D10 is getting to hot already on 1A, witch is no good , because, it overheats lithium battery! I’m pretty sure, D25 with 2 leds will overheat even faster so. D10 & D25 have cooling ribs inside battery tube :person_facepalming:

Good review mate!

My story i bought one of these a few months ago and i ordered the 2 XML option of course more LEDs = more power lol. They sent the single LED option of course lol. So i argued with Aliexpress and i got $11 AUD back from the $20 AUD i spent probably the best $9 AUD light ever lol.

Its built well and the stock driver is on the better side for a headlamp and stock it is plenty bright for a headlamp i wanted your edition the double LED to make one side red and one normal output for fishing but oh well. Ill probably buy another i think.

Now i lost it i don’t know where and how but its gone i think my niece moved when she was playing with my lights. I am planning when or if i find it to put a new driver in it with the 3v XHP50.2. Probably need to hire Liam Neeson to find it lol.

It opens clockwise…

wut? Back in post #23 it says CCW - could there be 2 types?

I have 2 D10, date on boxes 2018-11-19 and 2018-12-01 , both opens clockwise, should be same on D25, no? Manufacturer definitely is the same.

Ohh, I got the dual equivalent, no name brand.

Just ordered the single version: https://www.aliexpress.com/item/XM-L2-Mini-Head-Lamp-Outdoor-White-Light-Headlamp-Fishing-Head-light-USB-Charge-Waterproof-Headlight/32966277532.html?spm=a2g0s.9042311.0.0.6f754c4dPWhv8x

For $12, can't go wrong.