Here is a suggestion. Go to Fenixstore .com and check out the E0. It is a small AAA single led light. It runs 20 hrs on a single AAA. 8-9 hrs at a constant brightness, and then slowly dims over the next 11. They run about $20 with free shipping. I bought one of these just recently, and I really like it. It just replaced the Photon Freedom Max on my necklace. No fancy modes or anything. Small and light and Hard Anodized. The cap off of a fat Crayola marker fits over the end and turns it into a little Chemlight. YMMV. By the way, I bought another that puts out a little over twice as much light at the same time, but sold it immediately because the little E0 does it's job so well.