The Aqua Signal S25 Hour Starboard Lantern is a reliable and stylish navigation light suitable for sail and power boats up to 12m/39ft. Crafted with durable polycarbonate housing and featuring stainless steel components, it ensures longevity and corrosion resistance. This black-colored light, approved by major maritime authorities, offers easy installation with its side-mounting option and provides essential visibility with its 1 nm range. With included light sources and a 12V operation, this lantern is a practical choice for enhancing safety on the water.