|Compact, light weight, bright, and versatile. These head lamps have a single led with a parabolic
reflector and lens. The head band quickly and easily adjusts small enough to wear on your wrist,
or big enough to fit over large hats. It also has a built in clamp for clipping to objects, such as hat
brims. Takes (2) Lithium CR 2032 batteries(included) and runs for 20 hours. Spare batteries are
light and compact.