A hefty size and built-in reflector makes this light stand out from the competition. Our 180 Series Marker/Clearance Light is intended for use on tractor/trailer and transit bus applications where maximum visibility is a concern. Lens contains a built-in reflector which enhances the powerful Gen 2 LED output ensuring a bright signal. Compliant with SAE J592, J594, FMVSS 108 & CMVSS.