Material: The headlight ballast is made of metal, and the unique design allows it to last longer. The headlight ballast is stable and reliable. Function: The H-ID ballast control module converts voltage, stabilizes current, protects against pulse surges, and ensures that the headlights work in a stable and comfortable environment Installation: The xenon ballast H-ID control unit module is simple, convenient, and time-saving to install, without too many tools or complicated steps. Quality: Made of materials that meet strict OEM requirements, this product offers stable performance and is an ideal replacement option. Note: To ensure you receive the correct item, please confirm that your OEM number matches the one in the description.