Don't even think about anything but European ("E Code") lights. They are so much better, safer, and sometimes cheaper that the US-spec lights. I recently had an accident on my 16V. The quote to replace the RH light with US -spec was $276; Bekkers furnished an E-code replacement for $215.
Either bekker.com or danielsternlighting.com can sell you the parts.
1986 190E 2.3-16 (E Code lights)
1994 E420+ (E500 suspension/E-Code lights)