Portable Tricolor Navilight with Navibolt base, compatible with Navisafe Navimount system. This is an extremely durable and strong solution. This is a very low and tight mounting solution together with the any of the Navimount. - US Coast Guard approved for 2 nautical miles- 5 Modes: 360° All-round light / Anchoring light, 225° Masthead light, 135° Sternlight, Flashing light, Cabin light- Floats light facing up- Submersible to 20 m / 66 ft.- Corrosion resistant- Powered by three AAA batteries (not included)