Projection FilmsStar night lamp setsThe special 12 constellations design allows your children to find their own and feel different stars. Its also a desk lamp if you take out the two internal film and close the top cover.Brightness Adjustments: 3 kinds to suit different environments. 5% low brightness design help kids sleep. They wont be terrified even if being waken in the middle of night.360 Rotation: A rotation base projects colorful star, balloons, animals, and constellations into ceilings and walls, presenting a very beautiful dynamic universe and ocean, as if you were in that pretty world.Power Supply: 3*AAA batteries and USB charging, you dont need a long cable to put it in different places to project which is convenient