I'd recommend the Inova X1. It runs on a single AA, and it's only about $20 at your local Target. I've taken batteries that don't even work in a remote control and have sucked a few hours of light from them. Real economical and easy to operate. As a caveat, they've made several versions - one with a floodlight and one with a "focus" convex lens that makes a bright "spotlight", which only basically lights up in the direction that you point it in. Perfect if you want to see down a dark alley or hall, but if you don't want that look at the lens and see what you are buying first - the stockboys at Target usually can't tell the difference.