The Wesbar LED submersible, waterproof square trailer tail light, allows for a brighter light with a longer life. The amperage draw is also lower than incandescent. It includes a built-in side marker reflector that meets D. O. T. The light mounts easily by just drilling two holes on 2-inch centers and using the provided stainless steel mount nuts. This product is ideal for trailers over 80 inches wide that need a license plate light. Rest assured Wesbar lighting products comply with Department of Transportation lighting requirements.