The product is a Xenon ballast control unit module designed specifically for the Audi A8 4H D4 2017 model. Manufactured by Audi, the part number associated with this module is 4G0907697F. This control unit plays a crucial role in regulating the Xenon headlights, ensuring optimal performance and illumination for the vehicle. It is a genuine Audi part, designed to meet the high standards of quality and compatibility expected for this specific make and model of car. W215