Specifications: Max Output: 120.0 lumens Tactical Runtime: 2.0 hours Length: 5.2 inches Bezel Diameter: 1.25 inches Weight w/Batteries: 4.4 ounces Batteries: 2 123A (included) G2-LED The G2® LED is a compact high-output flashlight featuring a body made of tough, corrosion-proof Nitrolon® polymer and an aluminum bezel. It uses a virtually indestructible power-regulated LED and a precision micro-textured reflector to produce a smooth 120-lumen beam-six times the light of a big two-D-cell flashlight, and more than enough to temporarily blind and disorient an aggressor by impairing his night-adapted vision. The tactically-correct pushbutton tailcap switch provides secure, ergonomic activation control: press for momentary-on, twist for constant-on. Features: Virtually indestructible LED emitter regulated to maximize output and runtime Precision micro-textured reflector creates smooth, optimized beam Coated tempered window resists impact, maximizes light Tough, lightweight Nitrolon® body with deep grid pattern for secure grip, aluminum bezel Tactical tailcap switch-press for momentary-on, twist for constant-on Weatherproof O-ring and gasket sealing Includes high-energy 123A batteries with 10-year shelf life