I am on a base in the desert in southwestern Afghanistan and need a new flashlight. I have been using the small Mag-Lites which are fine for in the tent but I recently went on night shift and need something brighter to keep an eye out for Saw scaled vipers. The mouse population has been increasing and Saw scale vipers are only about a foot long and extremely poisonous so I want something very bright. It needs to fit in the flashlight pocket on Tactical 5.11 and Northface Paramount pants. I have rechargable AA batteries so an AA flashlight would be nice but not necessary. I am mainly looking for high output. I have done some research but I don't think lumen output is a good measure of what I need. I need a very bright and fairly wide beam. Any tips or suggestions would be greatly appreciated. Thanks.