"Streamlight TLR-3 Compact Tactical Flash Light provides a run time of up to 1.5 continuous hours to the 10% output level and is powered by a single lithium battery (3 Volt CR2 lithium battery), with a storage life of 10 years. This Streamlight Flash Light features a borofloat high-temperature glass lens and a face cap that is constructed with 6,000 series machined aircraft aluminum with an anodized finish.A key kit with five interchangeable keys is included to securely fit the Stream light TLR3 to the broadest array of handguns of any light on the market, including Springfield, Glock, Beretta, Kimber, Kel-Tel, Smith and Wesson, SIG and Picatinny Rail weapons. Streamlight Weapon Light TLR3 is waterproof to 1 meter for 30 minutes and is IPX7 rated.|C4 LED delivers 4,100 candela peak beam intensity; 90 lumens. 2-3 times brighter than high-flux LEDs|Parabolic reflector produces a concentrated beam with optimum peripheral illumination|Optimized electronics provide regulated intensity|Runs 1.5 continuous hrs. to the 10% output level|Includes 5 interchangeable keys to fit a wide variety of weapons|Rail clamp designed to rapidly attach/detach from side of weapon. One handed snap-on and tighten interface keeps hands away from muzzle when attaching/detaching|Ambidextrous momentary/steady On-Off switch|Body constructed of impact resistant Engineering polymer|Face cap constructed of 6000 series machined aircraft aluminum with anodized finish|Borofloat high temperature glass lens|Waterproof to 1 meter for 30 minutes. IPX7 rated|Operating temperature: -40F to +120F|Powered by one 3V CR2 lithium battery|Serialized for positive identification"