[Step-down Converter: Input voltage: DC 18V-20V; output voltage: DC 12V, DC 5V-13V; output current: maximum 10A; efficiency: equal 95%. Very suitable for golf, for electric wheels, for DIY toys, for remote control cars/trucks, for LED lights, for cameras, etc. The built -in low voltage protection. If the battery voltage is lower than 14.4V, it is automatically closed to protect the battery and 12V equipment. The DC power wheel adapter is perfectly compatible with batteries, such as 48-11-1820, 48-11-1828, 48-11-1835, 48-11-1840, 48-11-1850, 48-11-1852, 48-11-1860, 48-11-1862, 48-11-1865, 48-11-1880, etc. 18V to 12V step-down converter offers seamless compatibility and stable performance when powering diverse automotive devices. For battery use across applications, enhancing convenience for outdoor activities and car applications. [Widely applicable] This adapter can be used as a portable charger or a 12V regulator, which is suitable for 12V devices. Very suitable for upgrading