Whelen Headlight Flasher Crown Victoria High Side. Designed by whelen to plug into the headlight wire harness of Ford Crown Victorias. You would then have to wire up the positive negative and control wire to your own switches or battery per whelen install documents. Has multiple different flash patterns. I have over 20 of these in stock currently and you may not receive the exact unit pictured. Date codes will vary from 2006 to 2011 and will ship at random. Units may have minor cosmetic imperfections but tested and fully working. Units may have light grime, scratches scuffs, etc. Wire harnesses all have attached crown vic three pin plug but the power wires may vary in length. Some have installed fuse holders. Wire harnesses may have tape residue or have been taped together.