This lightweight model can be worn around the head, around the hard hat, or attached to a belt. 1" wide headband is adjustable and hooks securely to the light. Corrosion-proof polyethylene battery case is attached by a 4 ft. insulated connecting cord. Operates on four “D” batteries (not included). Reflector is 2-1/2" in diameter. 4,000 ft. candle beam.