Color Temperature is a measurement in Degrees Kelvin that indicates the shade of a specific type of light source. Many people believe the color temperature is a rating of the brightness of the bulb. The reality is that the higher the color temperature, the less use-able light output you have. Higher kelvin kits such as 10,000k and above have been manufactured for individuals that are more concerned about the actual color output of their lights as opposed to the actual use-able light output. See the chart below as a visual reference:
As you can see, the higher the Kelvin, the less lumens (light output you will have)
Below, you will find all the colors/kelvins offered here at HID-Power.com along with a description.
3000k = A strong eye catching golden, and deep yellow. (Most commonly used for fog lights)
5000k = Brilliant white, the best choice in terms of maximum light output.
6000k = Intense white, bright white with a hint blue. (For those that wish to have white, but sport a minor touch of blue)
8000k = Ice blue, combines styling and performance. A blend of color and good use-able light.
From here on out its more about the color of your lights rather than having max use-able light.
10,000k = Brilliant blue, a classic choice for the blue lovers.
Deep blue = For those who want the bluest of the bluest. Definitely an eye catcher!
Purple = Intense purple, an extreme eye catcher!
Pink = Intense pink, most common amongst the ladies.
Green = Intense green, rare, not many dare to sport the power of green.