Are you talking about standard H7 lights or Xenons?

If you mean standard bulbs, then I highly recommend the Philips Vision Plus bulbs.

http://www.nam.lighting.philips.com/...visionplus.php

I bought them here for $20.

http://www.aidauto.com/

They were rated very well in every comparison test that I came across. The original ones I had only lasted about 1.5 years, but I think that is the prcie you pay for better illumination.