STREAMLIGHT TLR-4 Tactical Light withLaser-Lithium Battery SG69240 Ultra lightweight & compact, the TLR-4Ÿ?? Weapon-Mounted Tactical Light with integrated aiming laser features the latest in C4?? LED technology. The light provides 1.5 hours of continuous runtime when in dual mode with the high power visible laser. Rail clamp designed to rapidly attach/detach from side of weapon. Models also available for H&K USP Compact frame and H&K USP Full Size frame. C4?? LED technology, impervious to shock with a 50,000 hour lifetime. 640-660nm red laser. 5,000 candela peak beam intensity; 110 lumens Runs 1.5 hours ( LED only or LED and laser); 11 hours (laser only) One-handed snap-on and tighten interface keeps hands away from muzzle when attaching/detaching. Securely fits a broad range of weapons Windage and elevation adjustment screw mounted in brass bushing for dependable zero retention of laser Ambuyextrous momentary/steady On-Off switch Three position mode selector switch for Laser only, LED illumination only or both Laser and LED Textured parabolic reflector produces a concentrated beam with optimum peripheral illumination. Optimized electronics provide regulated intensity. Laser provides long-range targeting Key kit included for mounting to a variety of weapons (H&K USP models do not include key kit) Uses one 3V CR2 lithium battery (included) Impact-resistant Engineering polymer with durable anodized aluminum face-cap Borofloat high temperature glass lens Withstands heat and cold with operating temperatures of -10??F to +120??F IPX4; water-resistant Serialized for positive identification 2.73" (6.93 cm), 2.81 oz. (79.7g) Limited lifetime warranty