The 6PX Tactical is just that-a flashlight designed specifically for tactical use. Providing simplicity of operation and tremendous illuminating power in a small package, it uses a high-efficiency LED-virtually immune to failure since there's no filament to burn out or break-to generate a brilliant, penetrating, perfectly pre-focused 320-lumen beam. The 6PX is activated by our classic tactical tailcap switch-press for momentary-on, twist for constant-on. The high-strength aerospace aluminum body is smoothly sculpted for a secure grip and is hard anodized to military specifications for extreme resistance to scratches, abrasion, and corrosion. A polycarbonate micro-textured reflector delivers a comparatively wider beam with generous peripheral light. We also make a polymer-body version of this light, the G2X Tactical, and a dual-output version with a two-stage click-type tailcap switch, the 6PX Pro. Features: Virtually indestructible LED emitter regulated to maximize light output and runtime Precision micro-textured reflector creates smooth, optimized beam Tough polycarbonate window resists impact High-strength aerospace aluminum body, Mil-Spec hard-anodized for extreme durability Tactical tailcap switch-press for momentary-on, twist for constant-on Weatherproof-O-ring and gasket sealed Includes high-energy 123A batteries with 10-year shelf life Specifications: Max Output -- White Light: 320 .0 lumens Tactical Runtime*: 2.0 hours Length: 5.20 inches Bezel Diameter: 1.25 inches Weight w/Batteries: 5.2 ounces Batteries: 2 123A (included) *Runtime (at highest setting for multiple-output lights) until output drops below 50 lumens