Attwood One Mile Sidelights are designed to mount on the foredeck or any flat surface of powerboats up to 12 meters long. These lights offer one nautical mile of visibility and are certified for recreational boats operating between sunset and sunrise so you can stay on the water longer. Polycarbonate lenses provide impact and shock resistance while the bases come with two countersunk, predrilled holes. Key Features Accepts #90 (7.5W) lamps Stainless model uses an 8W lamp Die-cast Zamak model has a Perma-Plate chrome finish 7" wire leads for provisions Corrosion resistant Includes rubber gasket lens seals for enhanced internal corrosion resistance