I bought it from EFX (312-238-9044). They're in Indiana. I received it within 3 days and I live in Naperville, IL. The bulbs are $44 w free shipping and are almost as bright as the OEM Xenon bulbs. Its perfect! My buddies like em and I had BMW owners I meet in car washes and around the area that asked me where I got them. They wanted one. Awesome product. It came with an adaptor and no need to use at all. Very easy to install. No errors at all.
http://cgi.ebay.com/ebaymotors/XENON...Q5fAccessories