BRIGHTSTAR D1C D2C D4C HID Bulb to replace OEM 4100K Xenon HID headlight bulbs. Kelvin upgrade Original Equipment replacement Xenon HID bulb from BRIGHTSTAR for D1S D1R D2S D2R D4S D4R type bulbs. This bulb is a direct replacement for the factory fitted Xenon HID headlight bulbs that come as an option on many top-end cars. Light colour: 5000K (bright white), 6000K(premium white), 8000K(aqua blue), 10000K(pale blue)下水道工程
