1990 Euro 560SEL
I am looking for advise on what is the best H4 blub choice with my euro. I think the previous owner fitted with 45/55 blub to statisfy the Japanese regulation, so it's rather dark. Unlike the variety we get with American Bulbs, (long life, extra vision), there just seemd to be one kind out there. Which brand do you guys use? Also does anyone know is the 9003 bulb interchangeable with H4 bulb. It look like both share the same base. There are much more variety with 9003.