Designed to meet the strict requirements for recreational boats operating between sunset and sunrise. Aqua Signal Series 25 Classic Navigation Lights are made for powerboats and sailboats up to 12m in length. Molded from fiberglass reinforced polycarbonate, these lights are impact, shock and corrosion resistant. Optics comes with a Fresnel lensing system and impact and high-quality, impact and shock resistant plastic. Key Features Housing cases are made from glass-reinforced polycarbonate for durability Housing is non-corrosive, non-magnetic and seawater resistant Optic casings are made from high-quality, impact and shock resistant plastic for toughness 10W lamps have 1 mile of visibility through white lenses Comes with a protection rating of IP45 and are USCG approved For more information regarding Aqua Signal Series 25 Classic Navigation Lights, please refer to theSeries 25 Data Sheet.