A Ceiling Fan is a fan Mounted on the Ceiling of a Room or space, Usually, Electrically Powered, That Uses hub-Mounted Rotating Blades to Circulate air. They cool people effectively by increasing Airspeed. It Doesn’t Cool the Air Temperature — we Feel Cooler Because the Fan Moves the Air Around Us, a Process Called Evaporative Cooling. Evaporative Cooling Works like this: A cold day will feel Even Colder if There’s a Breeze Because of the wind Chill Factor.

An SPST (Single Pole Single Throw) Switch is a Switch That only Has a Single Input and can Connect Only to one Output. This means it Only Has one Input Terminal and Only one Output Terminal. A Switch is a Mechanical or Controlling Device That Changes the Flow of Current Direction or Interrupts the Flow of Current Within a Circuit. Single Pole Single Throws (SPST) is Perfect for on-off switching. When the SPST is closed, the Circuit is Closed and the light from the lamp switches on. When The Single Pole Single Throw (SPST) is then opened, the light from the lamp goes out and the Circuit is off.