Ever noticed an electrical outlet installed upside down, with the ground hole on top? It may have been done intentionally, not by mistake.
In many homes, an inverted outlet indicates that it is connected to a wall switch and is meant for controlling a lamp.
In some commercial or specialized settings, ground-up installation can also be used as a safety measure.So that strange-looking outlet may actually be a small clue about how the room’s electrical system was designed…See below
