Brand New, sealed lens, 4" round, waterproof, flush mount, 3 wires connection, trailer brake/ stop/ turn tail lights This is a round LED combination brake, parking lamp and turn signal trailer light. The LEDs in the light are super diodes for exceptional brightness and performance. This light measures 4" in diameter, Lens and housing are one unit that is sonically sealed and waterproof, providing protection to the 12 super light-emitting diodes. comes with 3-pin plug and unit of grommet for an easy completely installation. These 4 inch round led trailer stop turn tail lights are compatible with almost All automobiles and devices equipped with a 12 Volt DC power source such as Semi Truck, Semi Trailer, Service Truck, Bus, Service Van, Utility Truck, Enclosed Trailer, Utility Trailer, Boat Trailer, Parade Float, Horse Trailer, Utility Trailer, Pick Up Truck, UTE, UTV Peterbilt, freightliner, international ,Kenworth, mack and lorry etc.;