Here's what other sites are saying:
The Fenix E10 Flashlight is a high-intensity flashlight designed for all your outdoor activities. Philips Luxeon Rebel LED bulb offers 55 lumens of brightness and has a lifespan of 50,000 hrs. Constructed of durable aircraft-grade aluminum with a hard-anodized, anti-abrasive finish. Toughened ultra-clear glass lens features an antireflective coating. Push-botton tail cap switch makes operating easy. Waterproof to IPX-8 standards. Uses 1 AA battery, not included. Special buy.