Nilight Hitch Cargo Carrier Oval Light Kit 2Pcs 6Inch Red W/Flush Mount Grommet Awesome Brightness: Each tail light has 10PCS high-quality 3030 LED chips to output super bright red light. The aluminum substrate circuit board adds more electronic components, making the circuit more stable and durable Ready For The Weather: The oval taillight adopts ultrasonic technology to tightly embed the lens and lamp body together, achieving a high sealing IP67 waterproof level. Always be ready for different kinds of weather attack Simple Installation: Firstly, install the bracket in the appropriate position. The diameter of the bracket mounting hole is 0.39?. Then insert the 3prong plug of the wiring harness into the back socket of the lights and fix the harness with ties. Finally, insert the 4pin male connector into the 4pin female connector on the vehicle Upgraded Unique Design: Nilight's tail light has unique ?ears? on its two sides, upgrade notches on the inside of grommet, make the grommet and light tightly connected and prevent them from falling off. Equipped with an 82.68? wire harness, one end of the harness is equipped with two 3-prong plugs that can securely connect the oval lights. Also set a 4-way flat plug on the other end to perfectly connect to the connector on the vehicle Extensive Application: Universal fit for 12V DC 4-wire cars system, function as turn/brake light and tail light for luggage rack, bike rack and cargo carrier. Also widely used on all kinds of trucks, trailers, tractors, Boat, special vehicle, etc