DP 7129 8-Watt 80 SMD LED Emergency Light (White) The emergency light is with built in long life and maintenance free rechargeable lead acid battery of high capacity. The battery has more than 500 times charging than other lights and discharges very slowly. Its very easy to use and can be handled with ease. It is lightweight and easy to use. It is perfect for use at all places and perfectly blends in with the surroundings.