Features middot;Utilizes Cree XM-L2 U2 LED with a lifespan of 50,000 hours middot;Powered by one 16340 rechargeable Li-ion battery or one CR123A Lithium battery can be taken under emergency circumstance middot;72mm Length x 21.5mm Head Diameter (2.83'' x 0.85'') middot;45 grams(1.59oz.)excluding battery and charging cable middot;Magnetic suction charging port in the neck, one included 16340 rechargeable Li-ion battery middot;Tailored magnetic charging cable also available in portable MICRO USB devices middot;One-switch for fast and convenient operation middot;Specialized two-position body clip, magnetic suction bottom middot;Lock-out function avoids accidental operation middot;Intelligent over-heat protection to avoid high temperature of the surface middot;Low-voltage warning reminds when battery replacement is needed middot;Reverse polarity protection, to protect from improper battery installation middot;Digitally regulated output maintains constant brightness middot;Made of durable aircraft-grade aluminum middot;Premium type ? hard-anodized anti-abrasive finish middot;Toughened ultra-clear glass lens with anti-reflective coating Bundle Includes, -2 X Fenix 16340 rechargeable battery -Charging Cable -Clip, Lanyard, Holster & O rings -EdisonBright BBX3 battery carry case