Yeah, the HID's piss some people off at night, but it's a must for me. I live outside of the city limit and have no street lights. Once I get towards town where everything is lit with yellow street lights, my 8k light blue lights seem invisible. Yellow is obviously higher on the Lumens range since it is lower on the Kelvin scale and that overpowers the visibility of my headlights on the road. If I drive with my yellow fogs on I adjust to it and can't see where my blue/white light is, turn in the fogs off and immediately everything is visible. I dunno if this happens to everyone, I'm partially color blind and have a hard time with some things
3000k - Pure Yellow
4300k - OEM - Yellow w/White
5000k - Pure White
6000k - White with blue
8000k - Pure Blue
4300k is going to give you the most light output........
Anything higher than 8000k is worthless, becuase the higher you reach the Kelvin scale, the less light lumens......