Wait, what? Do gas lamps somehow not affect insects?
https://www.bbc.com/reel/video/p0fm4f8m/the-last-remaining-l... has a nice video explaining the tech, explaining that, nowadays, they’re switched on and off mechanically, with a mechanical clock in each lamp post.
Due to its history the responsibilities in Berlin about simple things like that are separated in such arcane ways that no one really knows who is in charge for what. Even reforming that seems almost impossible and makes Berlin what it is: A likable but highly dysfunctional city state (I think I may say that as a German and ex-Berliner).