Two Way Switch

Two Way Switch. Two way switching means having two or more switches in different locations to control one lamp. A Two Way light switch is a simple single pole "changeover" switch with three terminals.

Two way switching diagram.Two way switch. - YouTube (Francis Barker)

In duplex type house there are ground floor and first floor and sometimes second floor also. The term 'two-way switch' is used in Britain to describe one of a pair of such switches required to operate a lamp from two different locations, such as from the top and bottom of a stairway. It works, but after one time: I turn on.

Full circuit diagrams and detailed illustrations (new harmonised cable colours).

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This is very useful for example placing a light switch at the top and bottom of a set of stairs. Two way light switch means controlling single light or electric device by using two different switches from different locations. Two way switch is a fail-safe option to use your devices even if your internet of things goes down.