xenon bulb replacement

[toohotdoc]

hey there. i know i posted already but i wanted to know if i can use these bulbs (website) for replacement or are they not any good? Also can i switch and use a 12000k bulb (purple) on my 02 bmw x5 which came with the stock xenon bulbs (d2S) which are 4300k blue? what difference is 12000k, more better light or just stick to stock blue

here is the website i was looking at to replace....please give advice...thanx
http://cartoka.com/catalog/product_i...cccddb21bb3b1e

EDITED--- okay i did a lil research and see that there is no point to get 12000k because of the glare and loss of lumens, so what bulb can i get that will give a good rich blue colour and not loose brightness......more realistically i aiming for a colour that is the same as when you start up the x5 and the xenon charge up giving a deep blue colour, how many k is that? OH does anybody of pics of 6000k, 8000k and 12000k.....thanks alot, a post with the pics in one post will be excellent.....