Lightweight rail-mounted light, constructed of an impact-resistant polymer, is designed to fit compact and sub-compact handguns. It also fits most full-sized handguns with rails on the market. Now shining brighter at 125 lumens! C4® LED delivers 5300 candela peak beam intensity; 125 lumens Runs 1.5 continuous hours to the 10% output level Textured parabolic reflector produces a concentrated beam with optimum peripheral illumination; optimized electronics provide regulated intensity Compact - Weighs 2.32 ounces (65.8 grams) with included battery; 2.71 in. (6.88 cm) Key kit included for mounting to a variety of weapons (H&K USP models do not include key kit) Rail clamp designed to rapidly attach/detach from side of weapon. One handed snap-on and tighten interface keeps hands away from muzzle when attaching/detaching Ambidextrous momentary/steady On-Off switch Uses one 3V CR2 lithium battery (included) Impact-resistant Engineering polymer construction with durable anodized aluminum facecap Borofloat high temperature glass lens IPX7 waterproof to 1 meter for 30 minutes Operating temperature: -40°F to +120°F. Serialized for positive identification Rail locating keys for Springfiled XD, Beretta 90two, Beretta Vertec, Glock, Smith & Wesson TSW, Kel-Tec PF-9, Kimber TLE-RL II, Springfield 1911, SIG GSR, Beretta Tick Adapter, Smith & Wesson M&P Limited lifetime warranty Assembled in USA