Easy Installation: Comes with grommets for surface mount, also added a 3-prong watertight plug with attached wire. For installation, you just need to surface mount the grommets & light setup, and then connect the 3 wires to the corresponding wires on vehicles. Hole size for surface mount is: 6.6” x2.5” x 1.75”
Upgraded Unique Design: Light has unique “ears” on its two sides, upgrade notches on the inside of grommet, and a tighter attaching ability between 3-prong plug and it. These help the light fit perfectly and firmly on the grommet, and the 3-prong plug attaches tightly on the light. Shakeproof, there will be no worries of loosing light or wires.
Ready For The Weather: Be highly silicon sealed, IP67 waterproof rating, always be ready for different kinds of weather attack.
Universal Application: Work on 12V DC system, function as reverse/back up, tail light for all kinds of trucks, trailers, tractors, semi-trailer, horse trailer, travel trailer, dump Truck, special vehicle, etc. Just make sure the hole size before your purchase.