Material: The headlight control unit is made of metal + ABS, with five major protection functions: short circuit protection, open circuit protection, polarity protection, overload protection, and load protection to protect the use of the headlight control unit. Function: Cold start current The headlight control unit has a cold start current without overshoot, which can accelerate the bulb without overpower, thereby improving the irradiation distance and lighting range. Installation: As a key component of the vehicle headlight system, this xenon ballast can achieve a simple replacement process. This not only simplifies user installation, but also significantly improves lighting performance, providing a brighter and clearer view 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.