... sources,built-in microcomputer PCB, programmable.Several lights change synchronously,7 colors dim by and by ... for building, amusement park, bill board, screen, street, stages and bar etc.Usage:They are widely ... bulbs, down lights, tube lights, spotlights, etc. LED outdoor lighting: wall washer lights, flood lights, street lights, traffic lights, underwater lights, underground lights, lawn lights, etc. ...