Custer CPL4R-STR 4 in. Round Red Self Contained LED Strobe Light Kit

4" round strobe kits include 2 lights, 2 grommets, and 2 plugs. These lights will fit into a standard 4" hole in a truck body designed for tail lights, or mount them in brackets with grommets. These kits have strobe units built into the lights so you don't need a controller, just hook up 12v power and go.