Xenon D1S D3S D8S Ballast Kit HID Xenon Headlight D1R D1S 921904Z200, 1864735010, A71177E00DG For Hyundai . Multiple Protections: Provides short-circuit protection, open-circuit protection, polarity protection, overload protection, and load protection. An ideal replacement for your older products. Materials: The xenon headlight ballast is made of aluminum alloy, offering durability and heat resistance, preventing deformation or damage. Low cold-start current eliminates overshoot, accelerating the bulb without overloading and extending bulb life. Installation: This ballast retrofit kit is easy to install and perfectly compatible with your vehicle. No complicated operations or modifications are required; it is simple to use, saving time and effort. Customer Service: Please ensure the part number of your car ballast matches the part number you are replacing. If you are unsure, please feel free to leave us a message., Manufacturer: HNHLSM