4" LED Backup / Reverse lights Truck Trailer RVs Tow Truck Dump Truck 100,000 Hr. Rated Lifetime Warranty Functions as back-up / Reverse light Features Chrome Reflector inside the lens which will make this light much brighter. Acrylic lens is sonic welded to the housing. 19-diode square Clear lens, white LED light strong light) Set of 4 pieces. kit includes LED light, grommet, and plug. DOT approved