1 ultra bright white 1W LED emitting a strong work light Weighs less than 100g 3 phase switch; full, half or flashing Lightweight ergonomic head harness More than 24 continuous hours of battery life at full brightness Safe easy-grip surface Takes 3 x AAA batteries included Specifications: LED: 1 ultra bright white 1W LED Weight: Less than 100g Switch: 3 phase switch; full, half or flashing Batteries: Takes 3 x AAA batteries included