Designed to meet the strict requirements for recreational boats operating between sunset and sunrise. Aqua Signal Series 41 Navigation Lights are made for powerboats and sailboats up to 65 7” (20m) in length. With housing built from high-quality polycarbonate, these lights are impact and shock 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 Wiring provisions 5" wire pigtail All lights come with a protection rating of IP56 and are USCG approved For more information regarding Aqua Signal Series 41 Navigation Lights, please refer to the Series 41 Data Sheet.