Power consumption: under 5 volts， up to 2.5 watts.Working Humidity: 90%Operating voltage: 5VOperating Current: ?��500mAOperating temperature :: - 20 ?? - 75 ??Storage temperature :: - 40 ?? - 85 ??Anion USB magic ball lampPower supply: USBSize: Ball diameter of 3 inches (approx 8cm)， bottom diameter 10CM overall height of 13.5cm