Cyclops CYC-HLH1000 1,000-Lumen Hades Rechargeable LED Headlamp • 1,000 lumens; 10 watts;• 109 yard (100 m) beam throw ;• Adjustable, elastic headband; lamp cannot be removed from headband;• Run time up to 4.5 consecutive hours;• Operates on 3.7-volt 2,200 mAh Li-Ion rechargeable battery;• Includes charging cable and manual;