The CTA UNIV120 Slim Line Inverter allows you to power any electrical device up to 120 Watts directly from any vehicles or airplane's 12 VDC auxiliary port. Simply plug the device into the Slim Line Inverter and instant power is available. Eliminate the need to purchase several individual car adapters and chargers for your portable devices. This unit features a built-in fan to cool the power source and prevent overheating.