Spaceman Magnetic Small Night Lamp Desktop Building Blocks Ornaments $ 5.49 Product information: Power supply mode: Button Battery Voltage:36V Size: 3.3*3.1 * 9.5cm Material: plastic and electronic components Working hours: 50-60 minutes Output power: 2W Light source power: 0.16W Packing list: Astronaut night light * 1, comes with 3 button batteries and 3 backup batteries Product Image: