If you can find them.. IMO, 5000K are the whitest. 4300K will look kinda yellow in comparison and 6000K will look blue.

 

4300k starts to get blue.. 5k too blue for me.
I replaced my fogs with 4150k & no yellow in sight!



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4150K is yellowish compared to 4750K

 

I agree, especially since anything after 4300k starts to get blue.


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5000K is the whitest IMO.

 

It's really all opinions..

I don't plan on ever changing my stock 4300k low beams, so IMO I picked the best closet match, while trying to avoid bluer than 4300k, with the PIAA 4150k that a few other members already had.


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The higher the kelvin is a number that reflects nothing but the color. I just installed my kit today and got 5000k. Will see how they look tonight. 4500k is OEM though. IMO anything above 5000k your just going for looks, but because the amount of usable light is low.

Try 6k but do not go any higher than that. You will get the brightest light between 4000k to 5000k.

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5K is what will best match LED switchbacks and LED DRL's. We did a side by side comparo with 6K on one side and 5K on the other. 6K is blue. 4300 is still yellow compared to the pure white of LED's.

 

I must be the only one that wants the DRLs to stand out...
That's why I went with matching fogs w/ stock lowbeams... Once I add the LED DRLs, I want them to be bright & stand out from the rest of the front end.. But to each his own, that's what modding is for


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3000K = Pure Yellow
5000K = Pure white
6000K = White with blue tint
8000K = Blue with white tint
10,000K = Pure blue

I believe there are some higher and they tend to be pink. OEM HIDs are typically around 4000K which in my opinion is yellow with a white tint. Looks a lot like halogens.

The human eye sees the color yellow the best in the dark so the closer to 3000K, the better you can see. Still 5000K and 6000K are the most commonly bought. You've probably seen 3000K in fog lights in Honda Civics n stuff. It's a JDM look.

 

As you move higher than 4300K you will be losing light output, its starts slow but will increase exponentially. 5000K is the highest I would go in color temperature because A) is just barely starting to go blue and B) its output is very close to 4300K in power. I run 5000K bulbs in the OEM xenon headlights to match the upgraded LEDs in my DRLs, otherwise the DRLs make the xenons look yellow. Its all relative though.