Jeneric 21 has got the point right there. And combine info given by Jeneric21 and Euroconec, you maybe stuck with OEM if you still want to use those lights. HID is very bright during the night, however, Foglights still are the must(Highbeams are not used as often as Foglights).
However, if you still interested, go to your local auto accessory stores, and look for a brand call B1 Halogen. It's made in Japan, a bit expensive compare to US made color bulbs. However, it give out the same, if not more, light output as OEM, and has blue-tinted glass. They are available in various type of bulbs(yes, even the turn-signal bulbs, back-up bulbs)....
<LI>1992 Mercedes-Benz 400SE
<LI>Moonstone Grey/Black Leather