Material: This Xenon H-ID ballast headlight control module is made of metal + ABS material, which has a heat dissipation effect, can protect the circuit board, reduce energy consumption, improve performance and extend the use time. Function: The H-ID ballast adjusts the voltage and current supplied to the lamp, providing short circuit protection, open circuit protection, polarity protection, overload protection and overcharge protection. Installation: Direct installation or replacement. This product has been repeatedly quality checked and is plug and play without any procedures. 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.