A double-pole, double-throw switch is the basic transfer equipment when the entire ... Emergency systems are those that supply power and/or light in the event of an electric utility outage to ...

The Amazon Basics Single Pole Smart Switch is a game-changer ... The Nexete Smart Wi-Fi Double Light Switch is a sleek, tech-forward choice for controlling your home’s lighting.

For instance, a basic on/off light switch is an example of a ... This makes it a single-pole double-throw (SPDT) switch. Double-throw switches can make connections in either of their two positions.