Pull switch

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A pull switch is an electric switch that changes positions by means of a chain or string.

The commonest use of a pull switch is to operate an electric light, especially those suspended from a ceiling but they are also commonly used in table lamps. The ceiling fan is another appliance often operated by pull switches. Pull switches may be either two position (open and closed) or multiposition (allowing for different fan speeds or levels of illumination.) Most commercially available pull switches use a short length of ball chain, which may then be connected to any number of optional leads for added length or decoration.