Moh-- good deal!!-nice job all the way around- is supply limited? Also-- same duty cycles as your others? (none on PHR--3min on/off on LOC -&off if feels warm?)--Len
It's just case negative, and the PCB bit you see on the end of the module is the center of the stock driver from the flashlight. The positive wire is soldered onto it and then epoxied to the back of the module.
hakzaw: the phr build have an unlimited duty cycle.
as for the red, I'll have to test one out but i'm going to assume it will eventually start to heat up after a few minutes...