... .72W, more functions, it has emergency function in DC condition KM-5812 energy-saving lampProduct characteristics: ... More functions, it can work as normal bulb in “AC” condition, but in “DC” condition, it can not only ... indicator light, the LED lamps off, and be in charge state, when it suddenly lost power, the ... about 10 hours for full charge.Cautions:1. In the emergency state, for service life of the ...