The TLR-1 HL provides a 630 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; 12,000 candela peak beam intensity and up to 630 lumens; TIR optic produces a concentrated beam with optimum peripheral illumination; Run Time: 1.25 hours regulated run time. Solid-state current regulation for consistent illumination level; 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 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/disabled; Fits existing light bearing holsters; 3.39” (8.61 cm); 4.18 oz (118.6 grams); Operating temperature: -40°F to +120°F.; IPX7 waterproof to 1 meter for 30 minutes; Lithium Battery Notice under TECH DOCS; Remote switches are available as optional accessories and must be used in conjunction with 69130 remote door switch. All switches and door switch are sold separately.