I got some about 3 months ago but now the brightness has faded so much that they hardly light up the road. Price isn't a concern, I just want to know what is the best ones to get so the bulbs don't fade in 2 or 3 months. The ones I got were from Ebay so they had no warranty. I found this HID site which covers the bulbs for a year, but what color should I get? I want one that's really bright and still looks cool. This site like any other sites recommends 6000k? Is it true? Thanks in advance!