I would like to know if there is a method to see how many lumens i am typically losing for every 0.1 volt my 18650 battery loses. If my flashlight has 3x XPL HI LEDS on a single 18650 on turbo mode. (Directly driven)
Also how would the lumen drop be affected switching to a 2x 18350 setup with extra voltage.
Also how would the lumen drop be affected switching to a 2x 18350 setup with extra voltage.