A timer switch is a mechanism that controls the on and off timing of electrical equipment such as for appliances and devices. An electric timer switch can help to save energy which operates by either a mechanical function or digital display and can often be set like a heating control to turn on and off at set times daily, on a 5 day 2 day basis or for seven days. A timer switch for lights can fit over existing light switches, a simple and convenient method without the need for wires or complicated installs, allowing lighting to be turned on and off on a timed basis. A socket with timer ensures that no valuable sockets are lost to the timer itself.
