800 lumens; 245 m beam; runs 1.5 hours (Laser/LED simultaneously); Laser only function runs 17 hours; 15,000 candela peak beam intensity; 510-530nm direct drive green laser with wide operating temperature range; Green laser provides high-visibility long-range targeting; 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; IPX4 water-resistant