A while back out of boredom, desire or a reason to just play with flashlights and improve my electronics and programming skills, i really started getting into modding flashlights. So i thought i might just make a thread for any random mods and experiments i may happen to do. i also have a few random or insane ideas that i may try to bring into existence.
One of my first interesting and not so plain mod’s:
The Lumintop Copper prince with a quad stuffed inside:
4x Cree XP-L HI V2 3B LED
17mm DrJones H17F Driver w/ lucidrv2
20mm TPAD Quad XP DTP Copper MCPCB
10621 Carclo Lens - 4-UP Quad Spot Optic
TODO: Dark heat treat the clip
Done just for the fun of it and to see if i could stuff that big ol quad mcpcb into it.
Had to create a custom spacer to fill in empty space, as i dont have proper tools to machine one i took a series of copper 20mm OD washers and soldered them together then stuffed it all in, and it all worked a treat.
There are some losses with trimming the edge of the optic but a before and after test actually showed very little if any visible change, except for one thing which is a square light pattern. (i’ll try and get a beamshot later.)
Latest mod, Astrolux X5 copper host, Quad 219c:
mtn-17ddm; bistro firmware
20mm TPAD Quad XP DTP Copper MCPCB
10621 Carclo Lens - 4-UP Quad Spot Optic
4x Nichia 219C D320 5000K LED’s
custom quad mcpcb spacer; Thanks kiriba-ru!
still have some work to do to it, plan to add a dark heat treated clip and throw together a small wooden storage case.
i have built up multiple lights with the (mtn-17ddm-Bistro) and don’t remember coming across this issue before and would like to see if anyone else has any ideas on whats wrong and what the fix might be; Having the odd issue where the light will always go down to a lower light level after just about 5 seconds when on turbo.
Things also tried with no change:
- Turned off thermal protection
- ‘factory reset’
- Different batteries
- benchtop cc/CV power supply
(When using the supply the driver makes a audible high pitched whine when it goes to the lower mode)
Meanwhile my USB programmer and soic clip finally arrived, so time to start playing with some customized firmware.
i will post updates in this thread once i start but plans are brewing for a possible first. the pointless but fun project of a “Internet of things” flashlight with features such as Wifi, USB charging and needlessly over powered. 
