Powerful weapon-mounted light fully illuminates target with an amazing 300 lumens of intense, white light. Ambidextrous, momentary or constant-on paddle switch lets you control light output to match your needs. High-output C4 LED lamp with impact-resistant Borofloat glass lens and deep-dish parabolic reflector produces a uniform beam with peripheral illumination and no hot spots or shadows. TLR-1 produces continuous output. TLR-1s adds a strobe setting instantly activated by two, rapid, successive taps on the paddle. Solid-state current regulation system maintains consistent illumination level through battery life cycle. Lightweight, machined 6000 series aluminum construction doesn&r Mfg: Streamlight SPECS: Machined aluminum, anodized, matte black. 300 lumen output. 3 1/4" (8.3cm) long, 1 1/2" (3.8cm) wide, 1-7/16" (3.7cm) high. 4.2 oz. (119g) wt., including batteries. Uses two CR-123 lithium batteries, included, with 2.5 hours continuous run time.