The TLR-2 HL with red laser 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. 1,000 lumens; 283m beam; runs 1.5 hours (LED/Laser combo); Laser only function runs 45 hours Engineered optic produces a concentrated beam with optimum peripheral illumination Red laser provides long-range targeting Rail 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. Mfg: Streamlight