Another use for wireless switches is in log homes, where electrical installations can be difficult because of the amount of routing and drilling that would otherwise be needed.
When running a regular (non-wireless) circuit, the electrician must drill a hole through all of the logs to get each wire to the switch location.
All remote light switches require a power source in order to facilitate the transmission of a signal to the receiving device.
The mechanical energy created by pressing the switch generates enough electricity to power a built-in transmitter that sends a radio signal to the receiver.
A "smart pill" is a relay which can be added to an electrical circuit to turn on or off one or more appliances, like lights or solar screens.