Inside of the light and the battery holder. It has a solid aluminum heat sink running the whole length of the flashlight. The outer shell is the positive and the inner core is the negative. The switch is on the tailcap. I powdercoated the inner core and then jbwelded it inside.
I'm considereing switcing out the led to a Cree XML. I had one on it, but I got some glue on the silicone dome so the led was destroyed. Right now it has a Cree XRE Q5 EZ900 driven at 1.5 amps direct drive, with 3 resistors in parralel.
Please excuse my spelling errors, i'm tired and just typing quickly and I don't feel like going back to fix my errors.