Description: HID stands for High Intensity Discharge. HID lights are the brightest auto lights today. In HID lights, the filament is replaced by the Xenon gas. When exposed to high voltage, the gas is ignited and produces a beam of light which is 3 times brighter than the regular halogen bulbs. Before purchase please check if your car uses the same bulbs ! Select the colour you require from the drop down - many manufacturers use 4300K as standard but you may wanting something more whiter or a little more blue - all are compatible and simply your choice Available Colours: 4300K, 5000k, 6000K, 8000K, 10000K, 12,000K Part Numbers: D1S .