It actually has adjustable output voltage.
Maybe this would make a good addition to a driver like the nanjg 105c flashed with lupodrv .
Just use this one to buck/boost to like 4V and let the 105c take care of the current output management.
For me, the 7V upper limit is ok, as i am more interested in single-18650 lights that can also deal with 2xCR123 primaries (for their better performance in the cold) or AAs (for their availability).
When i hook up another driver at the output of this one, i probably should disable the mode-selection on the buck/boost so i don’t feed a PWM signal into the 105c, which means reprogramming/replacing the microcontroller.
From the pictures i can only guess whan kind of MCU is used, seems to start with “12…”, so could be PIC12F629?
Can anyone provide more info on this?