STREAMLIGHT USB/AC Rechargeable BlackHeadlight Kit SG61603 Get Visual Everywhere You Go! Features C4?? LED with spot and flood beams - both with high and low modes. Shift between spot and flood beams for distance or up-close lighting needs Choose between USB rechargeable battery or alkaline back-up batteries High and low modes for bright light or longer run time. Twist facecap to power on and to change from spot to flood Double twist to change from high to low beam - thatŸ??s the Ÿ??Double Clutch!Ÿ?� Spot Beam to illuminate objects at a distance High/Spot: 125 lumens; 1,700 candela; 82m beam; runs 3.5 hours (lithium polymer); or 6 hours (alkaline) Low/Spot: 30 lumens; 400 candela; 40m beam; runs 10 hours (lithium polymer); 18 hours (alkaline) Flood Beam for work at armŸ??s length High/Flood: 125 lumens; 250 candela; 31m beam; runs 3.5 hours (lithium polymer); or 6 hours (alkaline) Low/Flood: 30 lumens; 70 candela; 4m beam; runs 10 hours (lithium polymer); 18 hours (alkaline) Lithium polymer battery charges via USB connector; features charge status indicator. Durable, impact-resistant polymer construction IPX4 water-resistant; 2 meter impact resistance tested