I searched online and there are complete kits for HID bulbs.. including 3/4 individual components other than just bulb..
A seller mentioned <<< hid lights bulbs... 6000k , 8000k ,10000k and 12000k colors and models 9005 , h4-2 , h11 , h7 , h1 >>>
my concern is:
1. Being legal, traffic police shouldnt stop me for that
2. No torture on stock battery
3. Being Economical, price not more than 2/3k