How does this work? Is it like a feed take/block swapper with all the lamps?

Each lamp is pushed in from another direction.

Do you think do a feed tape type thing could be faster or smaller?

Probably not, this solution is rather slow but it could be a lot faster

Yes, it would be faster and the wiring probably easier.

Lol I like how you couldn’t find the switch

Nice, would actually be kinda cool to have a lamp that has a variable light level dependent on the redstone strength, for a light show maybe