Comment by flyinghamster

Decades ago, my junior college's parking lot was lit by low-pressure sodium lighting. I recall the light being an absolute monochrome yellow, to the point that you had to be careful to remember exactly where you parked your car, because you weren't going to find it by color.

I can't vouch for Germany, but there used to be long, high-output fluorescent tubes and fixtures for street lighting in the US. They seem to have largely disappeared by the 1980s. They weren't very common, but some cities used them. They tended to be used on main streets when I saw them.