Virtually indestructible LED emitter regulated to maximize output and runtime Two output levels; 300 lumens on high for maximum light, 5 lumens on low for extended runtime TIR lens produces tight, far-reaching beam with enough surround light for peripheral vision Strike Bezel® provides personal defense option Coated tempered window resists impact, maximizes light output Dual-output tailcap click switchpress for momentary-on high, click for constant-on high, return to off then press or click again to select low High-strength aerospace aluminum body, Mil-Spec hard-anodized for extreme durability Weatherproof O-ring and gasket sealing