Features: - Emitter: Cree XPL HD LED - Power by 1x 16340 or 1x CR123 battery - Maximum output:550 lumens - 120° uniform flooding - Maximum beam intensity: 200cd, - maximum beam distance: 30 meters - Working voltage: 2.2 - 4.4v - Driver: Most efficiency constant current circuit - Surface treatment: Premium Type III hard-anodized anti-abrasive finish - Lens: Toughened ultra-clear glass lens with anti-reflective coating - Waterproof: IPX-8,2M underwater - Impact resistance: 2Meters - Magnet Tailcap - Length: 55mm - Weight: 63.9g (with USB 16340 battery) Specifications: - Brightness Levels & Runtime - Moonlight: 1-30lm 7hrs, - Low 100lm 1.7hrs, - High 200lm 1.4hrs, - Turbo 550lm 1hrs, - Strobe 550lm