DQG 26650 Triple Generation II Pocket Light coming Soon

Copper MCPCB, shorter long-press times, new outside design. If you can't see any difference you aren't looking.

Yes overlooked the copper bit.

THe press times have been extended. Old - instant on 2 sec off. New - 2 sec on 1 off. +1 sec overall.

I'll be getting one, for sure.

which price are you planning to call?

I’d prefer instant on/off and hold to change modes.

I don’t really understand the design choices behind this light. Maybe its just me but if you’re going to have 3 min of ~ 1200 lumens as a max output and 500 lumen high, why wouldn’t you use a single XM-L2? Then either make the light even smaller OR keep it the same size and have a nice reflector in there.

Or if you wanted to keep the 3 emitters use 3 Nichia 219s. Just my ideas. Maybe others prefer the XP-G2.

holding the switch for on is to prevent the accident on in your pocket… DQG 26650 is designed to be a pocket flashlight with the compact size… Shorter off makes it much better to operate now.

We also tried 5XPG2 and 7XPG2, but the beam is not as good as triple xpg lens.

Why not use an XML2 emitter with a reflector? I think DQG Triple is a floody light with a not-bad throw, it’s different with normal T6 flashlight of a narrow hotspot…

Triple XMLs is a good idea, but we have no luck to source back suitable triple XML lens.

Ric

We will shorten the on for 1 second… Hold 1 second for on…

Thanks for the advice! :slight_smile:

Ric

WILL BUY ONE NOW :D!!!

Groupbuy discount etc etc!

I think/thought ryanferg realized that and was asking why it was done that way. I suppose one good reason to do it this way is that High and Turbo should remain just as bright all the way through to the end of the battery’s discharge. If a parallel setup was used with a DD or linear driver the Turbo brightness would be markedly reduced when the battery was partially discharged, due to the battery’s voltage sag under load. In fact this is very likely to be true with a buck driver as well, even if it had low dropout - voltage sag under load on a partially discharged battery would keep Turbo from measuring up.

In addition to what Ric-CN said there are driver considerations here too. Since the Vf of a single XM-L2 is so close to the battery voltage it can be difficult to provide the same output levels throughout a discharge. Specifically the Turbo. There is simply not an appropriate buck/boost driver available that can generate a bright Turbo for an XM-L2 using a partially depleted 18650 or 26650 battery. A standard buck driver will lose brightness on Turbo fairly early in the discharge - for an XM-L2 running on a KK cell I’d expect the turbo to get less bright after you’ve discharged only 25% of the battery (eg you have 75% remaining but you can no longer get maximum brightness)! [That’s assuming a required 3.5V forward voltage for 1200lumen output and a pretty conservative/generous 0.2v dropout from the buck driver.]

Hmm, that sounds reasonable, thanks for pointing that out, wight :-)

With better maching, HAIII grey anodising, AR coating lens, the cost increased… The final price will be the same with Generation 1.

Ric

How does an AR lens coexist with the triple optics ? On top of ? What’s the purpose?

It appears the threads are coarser too which is good. Old ones were too fine

The threads of final product will be thicker than the sample shows , T-Type threads.

AR coation will be on the frond, aim to put more OTF lumens.

[quote=wight]

The gen1 uses a LTC1871 boost driver, according to the specs it needs 1.2 feedback voltage, just mentioning.

More exactly the LTC1871EMS, the one that is -40 to 85C rated.

I like this one, and I like what you’re doing with it.

Please count me in on the “I want one” list.

Thank you.

I am very interested in this light, thanks ric for taking the criticism well

Thank you for taking input from the forums. When I bought the 1st gen 26650, I thought that the body tube was too thin or flimsy for the output. This light has grown on me over the months. So much that it is in the top three lights I use over and over. Waterproofing, copper PCB, glowing button are a nice additions. Thicker body tube for better heat mass. How about a quad XP-G2?

The feedback happens after the boost, so I think it should not have an effect on dropout voltage. Is that why you mentioned it?

Yes, I am not sure how in this case the feedback affects the circuit, it should at least have some sort of impact.