Okay, back to this thread. I was having problems understanding my tail readings so I started a Separate thread here.
Now I’m back to heat. I looked closer into the heat coming from the driver. It’s coming from the R100 resistor. I powered the driver with one and two 18650s and two CR123s with my fingers clamped down on the resistor. It’s seems to get equally hot no matter the cell configuration. Real hot. Can’t keep my fingers pressed down on it. How much heat can a resistor bleed off? Is it going to fail, or are these tough little buggers. I built the light anyway, and left it running for quite a while. I’m sure that resistor must have been really hot, but the light didn’t fail.
I don’t hunt, but these red lights are for hunters and I’m not sure if they’ll have them running for extended periods, or just for one to five minute bursts.