Electrical light switch has signal transmitter to relay wireless signal to a receiver built into power socket to turn supply on and off to lighting unit

摘要

Operation of an electrical light switch in a house results in a transmitter sending a wireless signal via such as an infrared or ultrasonic link to a lighting unit power connection. The signal is received by a unit built into the socket to switch the power on. The transmission can also include a facility for control of a light dimming function.