![]() If I buy ten different 8000k bulbs from different sellers, they might all be different colors. If I buy any Philips 4200k bulb, it will be 4200k, unless it has colorshifted. There aren't any spec sheets or data sheets or consistency. There isn't a whole bunch of standardization (one batch of 8000k bulbs might be white with a little bit of blue, another batch might be royal blue) among HID kit resellers, mainly because they're illegally imported from China. Standard halogen headlights are close to 3000k, which is definitely a yellowish white. "3000k" bulbs are selective-yellow 4100k bulb. 3000k CCT, for instance, is not actually yellow. The kelvin numbers usually given are pretty inaccurate. Why would the hue of the parking lamp change slightly? Why would the beam output be equally bright, when there is accurate data showing that the bluer bulbs have significantly less lumen output? Why would the sky and the color of the buildings above the cutoff change in the bottom row of pics? Household fixtures are commonly found in color temperatures on the Kelvin scale of 2700K (warm incandescent), 3000K (warm white halogen) and 3500K (household fluorescent). I think the problem too is that people around me have been getting the 8000k kits and if you do that you might as well get the regular blue bulbs as the light. Light bulb color temperature is represented in the unit of absolute temperature, Kelvin, noted by the symbol K. It's the same picture, with the hue adjusted for each CCT. How to Choose the Right Kelvin Color Temperature.
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