Buyers Products 2.875 Inch Rectangular Incandescent Marker Clearance Light with Reflex is used on trucks and trailers to meet FMVSS/CMVSS 108 regulations. The light has an incandescent bulb and an amber colored lens. It features an internal Reflex optic, which eliminates the need for a separate reflector. The light installs with an integrated stud mount and is hard wired, with a blunt cut lead and ring terminal. Lights are sold in bulk (multiples of 10) and backed with a limited lifetime warranty.