The Cyclic 12 navigation lights are designed for powerboats and sailboats up to 12m length. Their elegant “helmet” styling leaves no sharp edges to cause injury or catch lines. Material: They are made of tough UV stabilized nylon plastic, non magnetic stainless steel electrical contacts and a nitrile water resistant seal to provide reliable long life. Housing: Available in black and white housing. Installation: Vertical mounted. Visible distance: Port – Starboard – Bicolor: 1nm /Stern – Masthead: 2nm Bulb (included): 12V / 10W