"The SureFire XC3 Compact Handgun Weapon Light represents the benchmark for duty-grade compact handgun illumination, delivering an impressive 550 lumens and 7,200 candela in a lightweight package. The XC3's slim form factor works with numerous commercially available holsters already on the market and features intuitive ambidextrous switching to provide simple control in momentary- and constant-on modes. The premium LED provides the optimal ""hybrid"" beam pattern that creates a smooth, far-reaching beam with center spot that's highly effective for close- to mid-range engagements. Powered by a front-loading, easily available 123A lithium battery (not included), the XC3 provides 1.75 hours of constant runtime while allowing for easy battery swaps in the field without removing the Light from your handgun. It's made from high-strength, hard-anodized aerospace aluminum and is gasket-sealed to thrive in harsh conditions. Attaches securely to both Universal and Picatinny rails. 170-meter max beam distance. Lightweight and compact Works with many commercially available holsters Super LED provides 550 lumens and 7,200 candela ""Hybrid"" beam pattern creates a smooth, far-reaching beam with center spot 170-meter max beam distance Fits Universal and Picatinny rails Made from hard-anodized, aerospace aluminum Gasket-sealed and waterproof to IPX7 standards Powered by a front-loaded 123A lithium battery that can be replaced in the field Ambidextrous switching provides intuitive control in momentary- and constant-on modes"