NAVISAFE 305 Portable Tricolor Navigation Light Ultra strong light 360, divided into three color zones: red, green and white USCG Approved - 2 nautical miles, boats up to 39 feet traveling &gt; 7 knots Made to be fastened almost everywhere, it is waterproof and will float if pulled from it its secondary magnetic fastening Super bright LED light and a double magnetic system that attaches everywhere, integrated into a compact shape that fits easily in your pocket 5 operating modes: 1) All on tricolor navigation light 2) White stern navigation light 3) Red and green bi-color navigation light 4) Red navigation light 5) Green navigation light