Good quality replacement hid bulbs???

hey guys,
i was curious if anyone knew of a good, reasonably priced place to pick up a replacement HID bulb. i found a bunch on ebay but i dont know how good these are so i rather not spend money on something thats going to break.
im looking for 3000k in h1 style.
and 6000k in h4h style.

can anyone help me?

bumpppp

i need an HID for my 1piece. wheres some sites that offer this retarded size

ebay i know i might get flamed but they have all sizes and there pretty decent i have had a kit fro around a year now and no problems (knock wood) just stay away from the cheaper looking ones.