http://www.fenixlight.com/ProductMore.aspx?id=79&tid=10&cid=1
Features
·Cree XP-G2 (R5) LED with a lifespan of 50,000 hours
·Uses one AA (Ni-MH, Alkaline ) battery
·105mm (Length) x 21.5mm (Diameter)
·54-gram weight (excluding battery and body clip)
·Digitally regulated output - maintains constant brightness
·Reverse polarity protection, to protect from improper battery installation
·Anti-roll, slip-resistant body design
·Tactical tail cap switch with momentary-on function
·Side mode switch in the front, fast and convenient
·Made of durable aircraft-grade aluminum
·Premium Type III hard-anodized anti-abrasive finish
·Toughened ultra-clear glass lens with anti-reflective coating