I just installed these in my new headlights:
http://www.amazon.co.uk/gp/product/B00SRLZXSI?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00They fit perfectly, not too bright but bright enough, pure white and nice and cheap. I know it was mentioned before that the side light access holes where a bit small in the Depo Bi-Zenon headlights so thought I'd share.
Enjoy
Oh and make sure you don't pull off/leave the original bulb in the headlight or you'll have to take it off again to get it out. Ask me how I know
