The “Cyclic” navigation lights are designed for powerboats and sailboats up to 12m length. 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. Their elegant “helmet” styling leaves no sharp edges to cause injury or catch lines. They are also especially designed to be visible from a long distance and are fitted with a 12V 10W bulb as standard.