... .use 19 long life,high brightness imported led, low power consumption, DC 19 led lighting state up to 10 ... indicator light on, used as ordinary light bulbs .when power off, the lamp off. when the product switch to ... when the product switch to the “OFF”flie,connect AC power, only the batteries are charging,charging indicator light on, ... , please charge it once every tow months. emergency lamp JS-022