I have seen square to round adapters for junction boxes but not round to square. I have an outdoor mounted round junction box with a light that's mounted on the wall not in it. I want to convert it to a square so I can put a square light backed light in instead. Is there a converter? I'd rather not rip it out and put more holes in the stucco plus the wires are coming in from conduit from the side so it's more of a pain.