its not so easy to use google image and any other google service, I try many times to share, seems the network not work normal. its hard to got good link from China to outside. 
can you help me put the image on if I send you email?
RGBW, very interesting, it light in turn or same time?
WOW, so nice job, I am not familar with COB, according to the picture, this COB is 6 time 6 series, the drivers does can work! congraduation!
PM sent.
Colours can do in turn and mixing special modes like candle light. TTerev3 made these drivers. All info here - Introducing the MELD-X RGBW(uv) flashlight driver!
The picture belonging in OP
thank you very much, dear friend.
Hello George, congratulations to this great design. My respect for building each light by yourself - I did this with my electronic products back in the eighties, and I know how much work this is.
I guess I received one of the first lights in germany. I don’t think the head of this light was glued, I could open it as easy as opening the tailcap. When ordering the light I planned to modify it, but it came out not as easy as expected due to the LEDs in serial. I’m still thinking of stacking the sense resistors - do you think this is possible? And if I burn the driver - will a replacement driver be available?
Hi George,
nice to see you here. I like your tiny lights very much, although there is still some room for improvements.
The 26650 III is nearly perfect for me, but I wish it has the UI and the same steps in output like the 18650 IV. btw…
Hello George, is are “brass beauties” also designed by you?
Hi, Mike. thanks for your inform, can you remember if there have any glue sign at the crew of the battery tube? I just remember I does do this process of gluing after Chinese market, they are first run. maybe the glue is so little or I forget glue by radom.
about modify, what do you want to do? if you want to reach more output, stacking resistors on the turbo mode resistors (biggest resistors on the board), but as I said, if you lucky got good performance of driver or LEDs. be carefully doing this, there have replacement driver backup now.
Hi, about UI, you mean same UI compare to 18650 IV? this does a question, at begining of design, I does decide using 18650 same UI, but after discuss with a flashlight fan, he told me for 26650, most using area is outdoor and only most fraquency use middle and high mode, seems 3 click for high mode is not so humanity for fraquency application. I agree with he.
so, I decided to make a change of UI.
Hi, sorry, these brass beauties is not my design. but there will be brass made tail click AA series flashlight come out this year. 
the housing is producing now.
It’s good to see you communicate with us, George. :+1:
Hi George! Thanks for posting and for providing your lights. They are unique and though smaller lights continue to develop, yours have lead the way. I like that you think out of the box, for example: no one would have thought that the tiny3 would be wired in series. I think it was a great choice and must have been more work for you as there are less examples of this high of boost driver in the flashlight community. Anyway, I hope you have a business plan moving forward and will continue on by growing your one man business?
HI George,
I was very interested in your 8650 Tiny 4 but pull back because of the switch issue. Now that you said it’s fixed, I’m ready to get one. Can I know from which online resellers do they stock this new improved version? Thanks in advance.
nice to see you.
yes, 3th have 7 led in series, the drive voltage will be around 21V, nearly reach SELV (24V) resist for luminaire appliance.
I have no business idea and plan, just doing as “let a thing slide”, in chinese: shun qi zi ran.
You can find at banggood, gearbest etc, I think they are zero stock sale mode, so, you can get light with new switch.
George, thank you for your excellent work!
Are you able to make your design available to BLF members as a host only?
Hi George, nice to have you here. My DQG 26650 3 driver was broken at the factory, but banggood sent a new driver. It’s really not difficult to line up the switch properly. I sanded down the tips on the new driver so it’s lightly press fit and doesn’t fall out when removing the tube from the head when greasing the o-ring. Enjoying the light very much, thank you!
edit… I have both the NW and the CW, and neither one had any glue anywhere.
Hi George, how nice of you to start a thread here on BLF.
I have always liked your flashlights and have bought most of them. They are always as small as possible and it is interesting to see your solutions to make it small, and to see the evolution towards better designs.
But what I most admire are your drivers, always custom made without PWM, and this 26650 III driver is another very special one! Making good flashlight drivers appears a very rare skill, many flashlight manufacturers are not able to make them well, and yours are always very good.
I hope for many more nice DQG designs, it’s good that there are folks every now and then ‘without business ideas and plans’, it certainly resulted in a series of special products