The Gama sonic DL71301 rechargeable LED lantern is a portable light source with 40 LED"s that can last up to 7 hours on a full charge. This unit is perfect for camping, boating, mechanic work, during emergencies, or any other time when you need extra light. The super efficient LED"s provide the best and most precise illumination lighting for all your indoor and outdoor tasks. When plugged in, the DL71301 is uniquely designed to automatically come on when any loss of power occurs. This unit comes with a built-in rechargeable 4Ah lead acid battery and a convenient carrying handle for easy portability.