The 200 Lumens LED Mini Lantern with BatteryGuard stops battery drain so you'll have power when you need it most. Conventional lanterns 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 lantern is turned off to extend their life by as much as 25%. 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 single on/off button, up to 15 hours runtime on 4 AA batteries (sold separately), water resistance, impact resistance up to 2 meters (on dirt), and lifetime LED bulbs that never need replacing. No matter the situation, this BatteryGuard lantern with a 7-meter beam gives you Power When You Need It.Specifications and Features:BatteryGuard technology stops battery drain to preserve battery life and reduce corrosionAllows batteries to be stored in lantern for years (up to their inherent shelf life)Lasts up to 15 hours on 4 AA batteries (sold separately)Brightness: up to 200 lumens; beam distance: up to 7 metersIPx4 water-resistant design; impact-resistant up to 2 meters (on dirt)Lifetime LEDs never need replacing; 3-year limited warranty