This Is a one of the finest lights on the market  The light will run several days on a 12 volt lawn mower battery .  It will not but a strain on your boat batteries. One light will do the job of 2 floating lights or lanterns This light has a 15ft cord and weights a little more than 1 pound. The light  has a life span of 50,000 hours and produces 2500 lumens. of lights The light will attract baitfish which will attract all types of game fish