Material: The headlight control module is made of metal + ABS, which is flame retardant, has good heat dissipation and good shock resistance. It helps the headlights work more stably, ensures that both low voltage and high voltage can start normally, and has high reliability. Function: The headlight ballast has five powerful protection functions: short circuit protection, open circuit protection, polarity protection, overload protection and load protection to ensure driving comfort. Installation: The H-ID ballast can directly replace your existing parts. Designed to meet or exceed OEM specifications. Plug and play installation, no programming or coding on the car is required, suitable for left or right headlights. 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.