Genuine OEM Volkswagen Control Unit Projection Module, part number 4KE907399L. This control unit is responsible for managing the operation of the projection module within a Matrix LED headlight system. It ensures the correct illumination and functionality of the headlight. The module is located within the headlight assembly. As a critical electronic component, genuine OEM ensures correct firmware and precise calibration for optimal lighting performance and safety. This is essential for the advanced features of Matrix LED headlights.