Perko Removable Bi-Color Boat Navigation Light This Perko Removable Bi-Color Boat Navigation Light features a deck illuminating utility light and a polymer top and collar with red and green lenses. It is certified for use on power driven vessels under 20 meters 65.6 ft. in length. With a stow-a-way plug-in type pole and a locking collar, this boat navigation light will require a 3 Pin mounting base. Features Deck Illuminating Utility Light Locking Collar Polymer Top and Collar With Red and Green