About Product:This product has a long life, maintenance free, capacity of up to 6 800mAh rechargeable batteries, that is, with the power storage function, power outages can still be normal use of Yu Zhaoming. This product can be directly used AC90 ~ 240V lighting. This product has the function of emergency, the city electric power supply is normal in the off state, power battery supply lighting. This product uses switching power supply charging, with over charging protection function. Ultra long life battery, 500 or more cycles of charge and discharge. 90 energy saving, high brightness, long life patch LED.