Optical principle design: interesting and vivid pattern engraving Power: Cycle charging, built-in lithium battery, long battery life Touch switch, light touch switch light, stepless dimming The projection lamp can be carried or , it is the best and most creative gift for Christmas and Moon Festival Light color: 3000K warm white Lighting power: 1W LED ; Battery capacity: 500mAh lithium battery Rated voltage: DC5V 1A IP rating: IP20