So do you these protected keeppowers from aliexpress would work in turbo mode?
Don’t know for sure. This seems to be an older batch (Version 2015) and at least the 2014 version was too long for this light. 2016 should fit but don’t know for 2015. And they don’t say anything about the trip current (when protection kicks in), this should be 10 A which is sufficient.
Edit:
found some older posts which said the 2015 version is already the shorter one.
Thanks!
What is the head diameter?
33mm on Banggood.
38mm in the OP.
I approximately measured one of mine with a tape ruler… 37/38mm
This explains why after extensive searches I failed to find an optic like that…
Thanks patmurris.
I hope the weather is nice in Nice 
37/38mm is the head OD. I haven’t measured the optic.
Rather cold - even for the season, but no snow on the coast so far… I hear the other parts of the country are freezing… 
I understand…it’s simply that a couple of months ago I spend a lot of time seeking a 7-led TIR optic that would have a diameter of 32 mm or less. I failed to find any. I guess the actual optic is like 34-36 mm. I may be able to find it….
The diameter of the optic is exactly 35 mm. I need one, mine is broken.
A floody one was easy:
Check height. And legs.
This one is 35.8, but you may be able to shave it to the size (height is different):
http://www.ledlink-optics.com/MockupDetail.aspx?ID=AAA01F3E9CD24B95A73CCEAAB9515C51
Much narrower 36 mm:
35.2 mm:
Thanks for the links!
Anyone having issues with parasitic drain while the DQG Tiny 26650 III is in standby? I now unscrew the tail cap when not using because it ruined a newer Basen 26650 after a couple weeks of not using the light. The battery dropped way down to around 1.6 volts and I wasn’t able to bring it back. I put in a different fully charged battery and did not use the light, just let it sit overnight. Next day I could measure the drop to be about .2 volts. Curious if this is just my light or others have the same issue.
Measured 9 uA at mine which is pretty low.
Ok, thanks. Probably just mine then. I’m trying to be careful to always unscrew the tail cap when not using it but I’m sure eventually I’ll forget and lose another 26650. Overall it’s a nice light, but agree with others about the button hard to locate the button at night the sharp edges on the lanyard area. This light has been out a while and I hadn’t seen anyone mention the parasitic drain before so I thought I’d mention it.
I notice something initeresting or disappointing. I did a ceiling bounce test when I got this light brand new and it registered 384 lx at startup. I used it once extensively and redid the test with fully charged cells of the same kind and got 351 lx at startup. Seems the LEDs degrade significantly with initial use.
BTW, my ceiling bounce test on other flashlights are 99+% consistent between tests when using same fully charged batteries even if I store the lights away for months without use.
I finally got one of these, and i’m pretty happy with it. The price was too high at Banggood, but i got it anyway. the Neutral-White is nice, a little on the warm side though. The interface is very nice compared to the POS that was in their early 26650 Triple that uses long-press for on and for off. That was one of the worst ever, this one is a dream in comparison; even if they did copy a lot of Zebralight.
I really wish it was not a battery crusher design and they used springs. for a small savings in length over their previous dual-spring light it’s not worth it. Why they had to be so hung up on creating the shortest light by a few mm at the sacrifice of good design is beyond me. With a large protected cell, there are only like 1.5 threads to catch on the tail-cap. I need to test a few other cells, and see if I can find a protected one that’s a bit shorter. Having used DQG lights since their first lights, I don’t trust them enough to use a non-protected cell.
I’m happy to have another 26650 light that should be useful.