SureFire P3X Fury Tactical Ultra-High Single-Output LED Virtually indestructible, ultra-high-output 1,000 lumen LED emitter regulated to maximize output and runtime Precision reflector creates smooth, optimized beam with plenty of reach and enough surround light for peripheral vision High-strength aerospace aluminum body, Mil-Spec hard anodized for extreme durability Tactical tailcap switch-press for momentary-on, twist for constant-on Tailcap switch locks out to prevent activation during transport or storage