Built to meet Code of Federal Regulations sub part 161.010; this rugged water light produces brilliant strobe flashes automatically when thrown overboard and is visible for miles at sea.
When used with a 6 volt alkaline lantern battery (not included) it will flash at the USCG required rate for over 52 hours and will still flash at least every 2 seconds after 7 days of continuous operation. A stainless steel mounting bracket is included.