USB Port Power Converter,convert power from USB port to 12V car cigarette lighter socket.Easy to power on your car electronic equipments by extra power (such as a power bank).Easy to enable Parking Monitoring feature of your Car Dash Cam,don't worry to run out the battery of your car any more. | Length:1.0m/3.28 ft.USB Input:5V 2.1A, Cigarette Lighter Socket Output:12V 0.8A Max, depends on the power from your USB port. (Please check the rate power of the device you are going to use with this cable!) | Plug and play. Brief and beautiful outlook, small volume easy to carry when travel.The part of PCB board is moulded by PVC which is hard to damage. | Synchronous Rectification: The conversion rate is 95% or more,lower heat and long working time.