i have a question...
my Car is stock..
so i dont think my headlights are bright enuf...
they are 4300K right???

if i want them to be brighter to 6000k??

so i just change the bulb RIGHT???

 

Actually, stock bulbs are the brightest bulbs out there unless you upgrade to 55W bulbs and ballasts.

As you go up the Kelvin scale, you lose output (lumens). I believe the stock bulbs are rated at about 3100-3400 lumens. Typical 6000K bulbs are rated at about 2400-2600 lumens. Thats about a 20% or so drop in output.

It is not brighter however, you may think it is due to the more obvious contrast in color.

 

maybe not brighter light but you could get whiter light bulbs

 

Yes, if you want to go with 6000K bulbs, then just change out the bulbs.