When choosing an HID Xenon Conversion Kit at   HIDXENONKITS it is important to remember where and how the HID System will be used. Luminosity measures the amount of light which is being produced; the higher the number the more light is produced. As you move further up the Kelvin scale the light becomes dimmer. If your kit is being used in a very low light area, it is recommended to use a kit which has a high luminosity, so that greater visibility is accomplished (4300K, 5000K, or 6000K). But if you are looking for an HID System which will win you the first place in a car show, it is recommended to get a kit with a higher Kelvin rating; 8000K, 10000K, 12000k, or 14000k are the most desirable, because they offer a one of a kind hue (look that will make you stand out). It is also recommended to get the same type of Kelvin HID Kits if you are looking to install them in both the front lights and the fog lights of your car.  HIDXENONKITS