The HID Xenon Headlight Ballast Control Unit Module is a genuine OEM part for Audi, VW, and Skoda vehicles, featuring a screw-on mounting style and a 12V DC current type. It is specifically designed for use with HID lighting technology, ensuring optimal performance and reliability. The control unit module includes features such as electric ballast and is a direct replacement for the original part, providing a perfect fit and seamless integration into the vehicle's lighting system. Made in China, this headlight ballast is a quality component that meets the highest standards of automotive parts and accessories.