Instant Rebate: Buy One, Get One Free from Amazon.com
Buy one single or double pack of GE Nighthawk headlight bulbs from Amazon.com and receive one of equal or lesser value free via instant rebate.
9004
http://www.amazon.com/GE-9004NH-BP2..._1?ie=UTF8&s=automotive&qid=1233892037&sr=1-1
9006
http://www.amazon.com/GE-9006NH-Nig..._1?ie=UTF8&s=automotive&qid=1233892358&sr=1-1
9007
http://www.amazon.com/GE-9007NH-Nig..._1?ie=UTF8&s=automotive&qid=1233892272&sr=1-1
Mentioned on Daniel Stern Lighting website...
http://www.danielsternlighting.com/tech/bulbs/blue/good/good.html
