The TLR-1 HL provides an 800 lumen blast of light for maximum illumination while clearing a room or searching an alley. Its wide beam pattern lights up large areas so you can identify who or what is nearby. Features C4 LED technology, impervious to shock with a 50,000 hour lifetime 800 lumens; 15,000 candela peak beam intensity; 245m beam; runs 1.75 hours Engineered optic produces a concentrated beam with optimum peripheral illumination Powered by two 3-volt CR123 lithium batteries with 10-year storage life Rail grip clamp system securely attaches/detaches quickly and safely with no tools and without putting your hands in front of the muzzle Mounts directly to handguns with Glock-style rails and to all MIL-STD-1913 Picatinny rails. Includes keys for Glock-style, Picatinny, Beretta 90two, S W 99 and S W TSW Machined aluminum sealed construction with black anodized finish Ambidextrous momentary/steady on/off switch User programmable strobe can be enabled/disab Streamlight TLR-1 HL TLR-1 HL Flat Dark Earth