It's an ever-changing Supernova of colorful light right on your wall! These projection night lights have a built-in light sensor that turns them on automatically at nighttime or if the room is dark. The night lights shoot a cool color-morphing supernova-effect light show on your wall! They cycle through 7 different colors continuously, and since they use LED lighting, no heat is generated and you WILL NEVER have to replace bulbs! The projection night lights are completely cool to the touch. These energy saving night lights draw only a fraction of the electricity of a 4 watt bulb, and the LEDs will last up to 10 years. They have a soft glow; not too bright and not too dim. Use it in your home, in your office, or when you travel to add a little colorful ambience to your room. Plugs into any standard 110v US outlet.