A Quick Way to Identify Switched Outlets
Source Electronic Components
One of the most common reasons an outlet is installed upside down is to indicate that it functions differently from a standard outlet.
In many older homes, wall switches were designed to control lamps rather than overhead lighting. As a result, one receptacle on the outlet may be connected to a wall switch, while the other remains powered all the time.
This setup allows homeowners to plug a table lamp into the switched portion of the outlet, making it easy
