Smart switches are devices that can be used to automate the control of lights, fans, and other electrical appliances. They use sensors, timers, and other technologies to allow users to easily control their home’s energy consumption. Smart switches can be connected to home automation systems, allowing users to control their lighting, heating, and cooling with a single app. Smart switches also provide a level of energy efficiency, as they can be programmed to turn off lights and appliances when they are not in use.