USB-C input requires 12V. Car power socket output is 12V 5A max. With this cable, your car electronic devices can be used at home. If your USB-C adapter outputs 18W, the cable delivers 18W. If your USB-C adapter outputs 5V, the cable delivers 5V. USB-C Port Power Converter converts power from a USB-C port to a 12V car cigarette lighter socket. Easily power your car electronic devices using an external power source, such as a USB-C power bank. Ideal for enabling the Parking Monitoring feature on your car dash cam without draining your car battery. Easily power your car electronic devices using an external power source, such as a Type-C PD power bank or wall PD charger. This Type-C converter cable has a wide range of applications in cars, RVs, and bikes. Converts power from a Type-C port to a 12V car power socket. Compatible with various 12V devices such as dash cams, car fans, GPS devices, tire inflators, LED lights, solar panels, and other equipment that uses a car power port. Specifications: Material: ABS Color: Black Type-C input: 12V 1-5A Car socket output: DC 12V 5A max Quantity: 1 piece (other accessories shown in the image are not included) Note: 1. Conversion: 1cm = 10mm = 0.39 inch 2. Please allow 0-1cm measurement deviation due to manual measurement. Ensure you are comfortable with this before purchasing. 3. Due to differences in monitor displays, the image may not reflect the actual color of the item. Package includes: 1 x Type-C PD Male to 12V Car Socket Female Converter Adapter Cable