I think mine is near 5000K, it's pure white light just like the new acuras. There is a very big difference in the output of these lights when compared to the stock halogen bulbs. You almost don't even notice the light from the halogen bulbs next to the HID bulbs. I just wish that the light was focused better. I'm working on trying to find a projector out of a benz or something and then fitting it into my housing.