The Streamlight TLR1 is powered by two 3-volt CR123 lithium batteries with 10-year storage life and is equipped with C4® LED technology which is impervious to shock with a 50,000 hour lifetime. This light is capable of producing up to 300 lumens measured system output. The deep-dish parabolic reflector produces a concentrated beam with optimum peripheral illumination and is able to run for 2.5 hours. This light has solid-state current regulation for a consistent illumination level.
The rail grip clamp system securely attaches/detaches quickly and safely with no tools and without putting your hands hazardously in front of the muzzle of your weapon. It also mounts directly to handguns with Glock-style rails and to all MIL-STD-1913 (Picatinny) rails, in addition to including keys for Glock-style, Picatinny, Beretta 90two, S&W 99 and S&W TSW.
The TLR1 is built with a machined aluminum sealed construction with a black anodized finish and comes with an ambidextrous momentary/steady on/off switch.