Perko 17-38 Removable Bi-Color Pole Navigation Light This Perko 17-38 Removable Bi-Color Pole Navigation Light comes equipped with starboard green and port red lights. It features gold plated contacts and a 34 inch diameter anodized aluminum tube. With a polymer top and collar with red and green lenses, it is a top choice among many. It is certified for use on sail or power driven vessels under 12 meters 39.4 ft. in length and is ideal for boats with casting decks on the box. Features Black Or W