In this video we have shown you how to control a lamp and any load from three places. you need three 2 way switch for this circuit.
What is the difference between 2 way and 1 way switch
the 1 way switch has two contacts and the 2 way switch has three contacts in a 2 way switch there are two 1way switches combined in one one of the terminals can be connected to either of the two but not both at the same time.

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