Streamlight 69110 TLR-1 Weapon Mount Tactical Flashlight Light - 300 Lumens LED Rating: Up to 12,000 candela peak beam intensity and up to 300 lumens measured system output. Deep-dish parabolic reflector produces a concentrated beam with optimum peripheral illumination. Ambidextrous momentary/steady on-off switch Up to 2.5 hours of runtime Machined aluminum, sealed construction with black anodized finish, waterproof, dustproof Includes rail locating keys for Glock style, 1913 Picatinny, S&W 99/TSW, and Beretta 90