You can&';t have fun with your windows fogged on your boat. That is why Sea Dog produced this nice little ceramic heater. To not only keep you warm, and your windows clear, but to pivot around to keep others warm as well. Don&';t have a boat but your car is in need? This little guys puts off great force against your windshield and car in a freeze. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Works great for keeping small windows clear of condensation Base pivots and rotates 150 Watts 5-1/2 foot cord Not intended for cabin heating in large areas Plugs into 12 volt power socket Includes Velcro Strap