Coleman Headlamp 50M Batteryguard C004 2000032701. Conventional headlamps experience residual power drain as long as batteries are connected to the circuit even when the device is off. With BatteryGuard batteries are automatically disengaged from the circuit when the headlamp is turned off to extend their life by as much as 25percent. It also reduces the chance of damaging corrosion so batteries can be stored in the device for years (up to their inherent shelf life). Additional features include a fully adjustable head strap a single on/off switch water resistance impact resistance up to 1 meter and lifetime LED bulbs that never need replacing. No matter the situation from power outages to roadside emergencies this BatteryGuard headlamp with a 50-meter beam gives you Power When You Need It. Specifications for Coleman Headlamp Batteryguard: Manufacturer: Coleman Color: Black Features of Coleman Headlamp Batteryguard BatteryGuard technology stops battery drain to preserve battery life and reduce corrosion Allows batteries to be stored in headlamp for years (up to their inherent shelf life) Fully adjustable head strap for comfortable wear Up to 7 hours runtime on 2 AAA batteries (included) Beam distance: up to 50 meters; brightness: up to 100 lumens IPX4 water-resistant design; impact-resistant up to 1 meter Lifetime LEDs never need replacing; 3-year limited warranty Package Contents: Coleman Headlamp Batteryguard Coleman 2000032701: Headlamp 50M Batteryguard C004