Just a little correction. Phillips only makes 4100K and 6000k bulbs. Any other Kelvin rating and your more then likely getting a cheap asian knockoff that will burn out/die prematurely.
And 5200K, 6000K is not the brightest. The standard 4100K capsules have the highest Lumens. The higher up in Kelvin you go, the less Lumens (usuable light) you will have. 8000K and higher HID capsules are a waste since they put out as much Lumens (and less as you go higher in K) as the brightest Halogen bulbs.
For those of you who dont want to go down the HID route, I suggest putting in some Sylvania Silverstar or Phillips Vision Plus halogen bulbs in your rides. Thier the brightest bulbs (Lumens) you can get. Much cheaper, and not to mention brighter (Lumens) then any of the $40+ each "ricer" tinted bulbs.
BTW, I recommend avoid Mr. Junk. Too many bad stories and pratically all he supplies is asian market hardware. Really cheap products that die an early death too many times. Not to mention that the NHTSA sould be getting in contact with him real soon, if they havent already. HID conversion [aka drop-in kits] are illegal No Classifieds On The Forum. Fines of $15,000 per bulb/$30,000 per kit sold are being enforced on all HID sellers. So all those rebased HID capsules are slowly going away. By the time a quality (Phillips) rebased capsule burns out, you'll have a hard time finding a replacement. And if you do, I hope your wallets ready for the hit.
But if you still want to go with a drop-in kit, stick with the name brand Phillips bulbs and Hella ballast.