A couple of years ago I stuck one of those aftermarked LED kits into a regular Mini-mag, and was less than thrilled with it. About six months ago I popped for a Mini-mag 3W 2AA light, and I am pretty happy with it. It is nowhere as bright as the CR123 powered lights I have, but it is bright enough to allow me to see well 50 ft or so at night, and it only cost $20, so it is in the pouch I carry every "working" day, along with my Leatherman...