In lots of HID front lights light bulb, there is a "K" noted at the end of the shade. "K" represent for Kelvin, it is an unit procedure of color temperature. Different number suggests different shade design. 

Which shade you get that depends upon just what light you want to do on your vehicle. 

But also for driving safety on roadway, I suggest 4300K-5000K, since it is close to the sunlight (white light) that human eyes perceive.

There are seven "K"s for HID color temperature: 3000K, 4300K, 5000K, 6000K, 8000K, 10000K and 12000K. the lower number with the longest wavelength and the most effective penetration the light has. 

The infiltration of 3000K and 4300K is the very best, as comparing to 10000K as well as 12000K, they are the worst. Shade temperature is connected to the penetration, it has no organisation of Lumen. The color temperature high or not will not influence the illumination of the light. 

Nevertheless, in rainy day or foggy day, the visibilty of 3000K and also 4300K HID bulb could be better. In contrast to 10000K and also 12000K, they will create an inadequate visibility. The sunlight has to do with 5500K, a pure white 5000K imitates to the sunshine, it fits as well as will certainly not damage the eyes.

3000K discharges yellow light outcome. 4300K and 5000K gives off cozy white light outcome (4300K is white light with a little of yellow, 5000K is intense white). 6000K releases pure white light outcome. 8000K discharges medium blue light outcome. 10000K and also 12000K emits blue light outcome.

Low beam of light headlight set is typically 4300K-5000K. 3000K is utilized in high beam of light headlight package, such as haze light, it has a highest possible exposure when driving in the rainy day and also unclear day, Most leading brand, like Audi, Mercedes-Benz, BMW, their manufacturing facility HID bulb is about 4300K, which would not more than 5000K.