Buyers Products 6 Inch Oval Stop/Turn/Tail Light with Clear Lens and 10 Red LEDs is used on trucks and trailers to meet FMVSS/CMVSS 108 regulations. The light has a clear lens with bright red LEDs. It uses a PL-3 connection. 4 in. black grommets are also available for mounting. Lights are sold in multiples of 10 and backed with a limited lifetime warranty.