Works really well - Coast LED Lenser Convertible Tactical Weapon Mount Light LED Flashlight LL7736TS - 83 Lumens, 3 x AAA

This is not as bright as the LED Scorpion by Streamlight, but is made of tough metal, with high quality contacts and LED. It runs for 2 days vs 1 hour for the Scorpion, and uses common batteries.
Pros: super bright, runs 2 days straight, looks great
Cons: I think its made in China

This review was written in the old system and had content requirements that are different than reviews written today.