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Switches

Electrical circuits can be opened or closed using switches. Switches allow power to flow through lights and other appliances. There are single switches and also two way and three way switches. New switches offer a wide range of control, such as full-range dimming, a delayed fade from on to off. There are also switches which turn on when a person is in the room. Switches should always match the amp and voltage ratings for the circuit. The most familiar light switch is single pole switch which has two brass terminal screws on the side.