2 Red + 2 White 6" Oval Oblong LED Light Fog Back-up Reverse Stop Turn Tail Truck Trailer The Red Light function as brake stop turn signal light.10-diode square LED light.Acrylic lens is sonic welded to the housing. The White Light function as back-up reverse fog light.Features chrome reflector inside the lens.12-diode square LED light. Acrylic lens is sonic welded to the housing. Operates from 9-16 volts Great Quality! VERY EASY INSTALLATION!!!