The Invincible Marine BR51422 12-Volt Chrome Plated Power Socket with Cover is perfect for cell phones, spotlights, aerators and other 12-volt accessories. This socket defends against moister and corrosive elements, and requires a 1-1/8-inch installation hole. The Invincible Marine BR51417 12-Volt Power Plug is sold separately and fits standard cigarette lighters or marine sockets. Don