Streamlight TLR-1S With Strobe CR123A Lithium 300 Lumens Black. These Pistol Weapon Lights made by Streamlight feature a parabolic refractor that concentrates the beam for optimal peripheral illumination to cover a larger area. The Streamlight TLR-1S 300 Lumen Earless Flashlight w/ Strobe is crafted from anodized aluminum for a lightweight yet rugged build that is resistant to corrosion and abrasion. There's also an ambidextrous switch so that left and right-handed shooters can easily access it. Get the Streamlight TLR-1S Earless LED Flashlight to enhance your firearm with extra tactical utility. Specifications for Streamlight TLR-1S With Strobe: Manufacturer: Streamlight Light Output: 300 lumens Battery Type: CR123A Color: Black Gun Model: Universal Length: 3.39 in Weight: 4.18 oz Weather Resistance: Waterproof Condition: New Gun Type: Pistol Run Time: 2.5 Hours Features of Streamlight TLR-1s Earless Flashlight W/ Strobe: LED technology impervious to shock with a 50000 hour lifetime Deep-dish parabolic reflector produces a concentrated beam with optimum peripheral illumination Solid-state current regulation for consistent illumination level. 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. Double tap of momentary paddle within 0.4 seconds activates strobe. (TLR-1s only) Highly accurate sight repeatability when remounting Package Contents: Streamlight TLR-1S Earless Flashlight With Strobe 3V 123A lithium batteries Mounting Accessories 1913 and S&W keys Streamlight TLR-1S With Strobe 69211: CR123A Lithium 300 Lumens Black