LINAFIRST@ Adult science sky projection light automatically rotate the projector sweetheart friend creative gift birthday Phantom YoYo Adult Science Projector night lamp toys seasonal star sky projection nightlight (Warm Color Automatic rotation) Seasonal star sky projection light, Uses projector technology to project over 1000 stars on the wall DIY installation, fully edificatory& challenging product When projecting, you can adjust and see the star image that you want according to the latitude, date Constellations can be projected for your learning and study Operated with two AA batteries, Screwed on 2.5V/ 0.5A commom torch light bulb