gotcha. Yeah the ballasts will still work, along with the signal wires. Just get the different bulb, that's meant for the ballast you have (IE dont mix a Digital ballast bulb with a Standard ballast bulb)

But seriously, I had 8000k..liked em...nice and blue...
Dropped to 6000k...much more visibility, and still a nice blue hint...

Fogs are 5000k, and they are ****in awesome bright