Output --- 12V, 10W max., depends on the power of the USB port, simple operation and convenient use. HIGH PERFORMANCE --- USB port power converter, converts the power of the USB port into a 12V cigarette lighter socket. Synchronous rectification, the conversion rate is over 95%, which reduces heat generation and operating time. Easy to use --- Easily supply power to your car's electronic devices (e.g., power banks). High working efficiency --- Easily activate the tachograph's parking monitoring function; you no longer have to worry about removing the car battery. High working efficiency --- Easily activate the tachograph's parking monitoring function; you no longer have to worry about removing the car battery. USB to 12V cigarette lighter adapter - USB to 12V cigarette lighter adapter - 12V cigarette lighter socket - 12V cigarette lighter adapter - USB to 12V car socket for tachograph This is a practical car jump starter cable. The USB to cigarette lighter socket power converter can