SET of 4 Autosmart Kl-35100rk Red Oval Sealed LED Turn Signal and Parking Light Kit with Light, Grommet and Plug for Truck,Trailer (Turn, Stop, and Tail Light) Functions as stop, turn and tail light. Acrylic lens is sonic welded to the housing 10-diode square RED LED light Operates from 9-16 volts 4 LIGHTS IN ONE BOX