That lighthouse is one I nicked from a free 3d model place and buried a beacon inside. You have nine to play with in the sim itself and that’s the least weird. Couldn’t be arsed to give it proper glass.
It should be visible forever but for some reason it isn’t there. It is in Shetland.
You’d have to get very clever indeed to make a lighthouse that worked as a real one. I’m not sure it’s possible but I might ask around.
What I will do is try is to get a better one put together. That one’s pretty rough but still fun. I’ve got a round head lighthouse installed now and also a peninnis one. Not perfect likenesses but better than that one.
Update should be out in 3-4 days.