Designed to meet the strict requirements for recreational boats operating between sunset and sunrise. Aqua Signal Series 40 Navigation Lights are made for powerboats and sailboats up to 65' 7" (20m) in length. The screens are made from brushed stainless steel so they will last longer and wont corrode due to seawater. 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 40 Navigation Lights, please refer to the Series 40 Data Sheet. †Tri-Color lights are for boats under sail only. ‡Strobes are considered distress signals in inland waters and are illegal in offshore waters. §Entire assembly can be removed without tools for trailering or storage.