Stronger iron bracket on the back seat, providing enough strength for your application. The round amber and red and white LED lights can be removed from the iron bracket base, which is convenient for replacement. The diameter of the round LED tail light is 4 inch, with the 5.5 inch rubber grommet, with grommet for standard mounting hole. Multi-function tail light - The round LED tail light is standard size 4" with rubber grommet that universally fits as tail light, turn signal, flash, side/fender light. CONNECTION INSTRUCTIONS - 5 color wires connection system for negative, turn signal, brake light, running light and reverse light. Easy to install - Heavy duty iron bracket base with seven mounting holes for convenient installation, never bend during installation, provide enough strength (screws not included). Fitments - Compatible with any DC12V system, great for trailers, trucks, campers, UTE, UTV, boats, caravans, flatbeds, etc. Can improve safety and update the appearance of your