You no longer need to be tied down to your vehicle to use you 12 volt devices You can use AC power from any normal household outlet. For all your electronics with the Schumacher PC-6 70W 12V AC to DC Power Converter. This unit provides 140 Peak Watts. It includes an LED indicator. It is ideal for running mobile devices, travel coolers, lights and other 12V accessories when you are away from your vehicle.