With a rugged design and cutting-edge technology, the Streamlight TLR-1 Game Spotter Weapon Light features C4 LED technology impervious to shock to give you reliable long range night vision friendly light. This rail mounted tactical light has an impact resistant green power LED that delivers 150 lumens for up to 1.75 hours. A tethered battery door and latch mechanism enables quick and easy battery replacement. A rail grip clamp system and included rail locating keys quicky and easily attach to 1913 picatinny rails, making this weapon light ideal for hunters, military, and law enforcement.