You can also get metal inserts for the hole to protect the plaster from the light destroying everything if you want to be super tidy. Bought a load in my last place but alas can’t remember the name. They have a split in them so you can twist/feed them in from below.
You can also get metal inserts for the hole to protect the plaster from the light destroying everything if you want to be super tidy. Bought a load in my last place but alas can’t remember the name. They have a split in them so you can twist/feed them in from below.
E: c-fix