About Product:This product is built in switching power supply and long life capacity of up to 1800mAh rechargeable battery. Long life battery, 500 or more cycle charge and discharge. This product can be connected to the outside of the city or the built-in battery powered lighting. The 40 energy saving, high brightness, long life LED (a group of white light, a group of warm light). - color temperature, namely bright white light, warm light alone or at the same time, a bright white light and warm light.