I've done a fair bit of Googling but I can't seem to find the info I'm after. A friend of mine said they saw a video showing how to create switches that turn on at night and turn off during the day. I can't seem to find this video.

Does anyone know if there's a way to create a set up that turns settlement lights on at night but turn off during the day automatically? Terminals and existing switches can't do it as far as I can see.