Designed for large devices: our product has the same appearance as the 12V USB outlet, but the core has been improved with major innovations. It supports 12V-60V voltage input, safe and reliable. In addition to being installed in 12V/24V cars and other devices, it can also be installed in 36V/48V/60V and other large ships, trucks and other devices. Provide you with reliable USB power supply. Double fast charging port: The 12v usb power outlet is an officially certified USB fast charger, the PD30W+QC36W output combination can provide you with up to 66W power output. It can meet the daily needs of cell phones, tablets, wireless chargers and other products; Note: Charging for laptops is not supported for the time being.