What Does Rocker Switch Mean?
A rocker switch is a type of switch that rocks back and forth, an action where one end is raised and the other is depressed, much like how a seesaw works when pressed, instead of tripping or staying depressed. One side of the switch is on and the other is off; these are usually marked with a “1” for on and “0” for off. Most common household switches are rocker switches.
Techopedia Explains Rocker Switch
A rocker switch toggles between one of two states, often on or off. It is commonly used in homes for light switches because it is very easy to operate and requires little motor skills and pressure to activate, making it easy to find and use even in the dark.