This head lamp can last 30 hours on low-light setting or give you 6 hours on the brightest level. Weighing 2oz, it’s comfortable to wear with a 45-degree pivoting head. Wattage: 5W Brightness: 2000lux Beam distance: 500ft / 150m Powered by: USB Rechargeable Working time: 6-30H Waterproof: IPX4 Material: ABS+PC Weight: 2.64oz with batteries