They use to have then in France. They are almost guarenteed to be illegal just so you know. If you want good ones, Hella and Nokya are good brands of Yellows. PIAA has them but they are priced out the ass.
http://www.webbikeworld.com/t2/motor...ight-bulbs.htm
You can order them of the web for like 10/each or if you want to get them locally, check a motorcycle place and they should have them in H4s.