These C.E. Smith LED Replacement Light for Post Guide on Boat Trailers are great for marking where your trailer is behind your tow vehicle when backing down a ramp in the dark. The 1-piece LED lights easily fit on top of your existing 2 PVC post guide-ons (not included). Red LED light faces backward, while an amber LED light faces forward under a protective clear lens. Includes 2 sealed 1-piece LED lamps, each with 8 of wire and all necessary electrical connectors and post locking bolts. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.