Kensun HID Xenon Replacement Bulbs - Pack of 2 - D1S - 8000K Important: This product is only compatible with cars with an HID system already installed. Otherwise a conversion kit is necessary. Simple installation - in 20 minutes or less (no wire-cutting or special skills required) Produces 2 to 3 times as much light as a halogen bulb Superb night-time visibility