Solar-powered navigation light Carmanah 702-5: The Carmanah solar light is strong, waterproof, maintance free for 5-8 years, visibility upto 3.7 NM, Using intelligent, patented electronics, our solar-powered LED lights can operate year round at nearly any location in the world. With more than 90,000 units now installed in 110 countries, the Carmanah solar lights have proven to be the most durable and reliable self-contained solar marine lighting available. It is possible to change the battery. The 702-5 has one solar panel more for extra loading power. We need to know in with country it will be installed. Applications: auquaculture, marker buoys, navigation buoys/beacon, harbours, jetty, marking obstacles, airport and there where you have no electric power. There are more than 200 flash codes: we show you the most common. Like 055-Fl2s(f0.5-e1.5) means: art.no is 055. Fl 2sec is like a flash of 0.5sec and out for 1.5sec.