The Streamlight TLR-3X USB tactical weapon light delivers 500 lumens of brightness with 6 500 candela and a 161-meter beam for superior visibility on subcompact and compact handguns.Streamlight TLR-3X USB Tactical Weapon Light500 lumens brightness with 6 500 candela output161-meter beam distance for clear target identification1913 Picatinny rail compatibility with reversible rail clampsUSB rechargeable with SL-B9 battery or CR123A lithium batteryHeat-stabilized polymer construction - impact and chemical resistantOne-handed snap-on tighten interface for quick installationSlim profile design tested in extreme temperaturesEngineered for tactical applications and personal defense this weapon light features an innovative mounting system that allows secure installation and removal without placing hands in front of the muzzle making it ideal for law enforcement and civilian use.