Why Some Wall Outlets Are Installed Upside Down: The Practical Reason Behind It

older ones, wall switches were originally meant to control lamps, not overhead fixtures. Electricians often wired just one half of a receptacle to a switch, leaving the other half always powered. To help distinguish these “switched” outlets from standard ones at a glance, some electricians began flipping them upside down as a subtle visual cue. It continue reading …