I had 12ks for a while and.... well everyone knew it was me when I was coming LOL. Noticed quite a bit of light output increase when I switched to 10ks in my lows highs and fogs.
i got mine from ebay $60 shipped 10k and they were aimed up to high and i would get at least 4 flashings of headlights a night until i lowered them..lol
they look good, i like the blue. i just had a bulb burn out in mine and i had purple. i have a buddy that gets them for $80 bucks shipped any color any bulb size.
I've got 4300's in my Low and Fogs...I get flashed regardless if its just my fogs or my lows............I drive with both on .......What else is great is when I flash back....ALL ON MOD....they dont go off and they get the highs in the eyes. They are stupid bright though