ils ressemblent à ça ?
http://www.autoatlanta.com/For-your-Porsche-Sylvania-Headlight-Sealed-Beam-Halogen-7-H4-Without-Bulb-Parts-PN-S0301600118.html
Si oui,dispo en jaune mais en 35W.
http://www.ebay.com/itm/New-Wagner-4412-a-Amber-12-Volt-Par46-Sealed-Beam-Headlight-Bulb-Fits-LH-23065-/251297118680