Its ultra-compact - just 4.6 oz. - but its as bright as lights 5 times its size thanks to an innovative lithium ion rechargeable battery and xenon bulb. 6 watt xenon gas-filled bi-pin bulb; spare bulb in tailcap. Lithium ion 3.75V battery with on-board safety control circuit. Up to 70 minutes continuous use between charges. Up to 12000 peak beam candlepower 116 lumens. Adjustable focus beam. Rechargeable up to 300 times on 100V 120V 230V 240V AC or 12V DC chargers Clamp-style charger holder with digital control circuit that prevents over charge; LED indicates charge status. Fully recharged in 2.5 hrs. Momentary and constant-on modes 5.3 in. 4.6 oz Black.