Switches  The switch is an electrical device that is used to break or make an electrical circuit manually or automatically. They are generally classified on the basis of number of circuits they control as one way and two way switch. One way switches are used when you need to simply turn something on or off, from a single location. (for example: fan, light etc). Two way switches are often used in stairways, sitout ,bedroom where we can control from two locations ( Eg: Turn on the light from downstairs while going up and turn off the light from the first floor)  One way switch is the most used type of switch in a house or building. Mainly there are two types of switches which are modular and non modular.

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