Cyclops CYC-HLP2000 2,000-Lumen Poseidon Rechargeable LED Headlamp

2,000 lumens; 20 watts; 218 yard (200 m) beam throw ; Adjustable, elastic headband; lamp cannot be removed; Run time up to 5 consecutive hours; Operates on 3.7-volt 4,000 mAh Li-Ion rechargeable battery; Includes charging cable and manual