Which one are you trying to replace? Can you post a picture?

If you buy a 'genuine Eriba' part which is a standard, say, Hella part, you will pay through the nose for it.

From memory, I sourced my replacement from Germany for a fraction of the AL/Jandi price. I did the same when I replaced the high-level brake light saving around £60 for the exact same unit.

It pays to do some research.

PS: I've just done a search and this thread gives chapter and verse with names of the suppliers I used Awning light