AQUA SIGNAL #3518-302. Series 25 bi-colour light. For power/sailboats up to 39'(13M). Rigid, saltwater and non-magnetic polycarbonate with plastic side skirts. 1 nautical mile visibility. 2 hole mounting, requires 2 spade connectors (not included). Fresnel - polycarbonate lens. 2.9-inch H x 2.5-inch W. 12V/10W.