A Power Socket a Device to Which Electrical Devices can be Connected to Receive the Electric Current Required For their Operation. Connected by a System of Cables to a Power Source, Usually, an Electricity Generation Facility operated by an energy Production company, generally has no moving parts. Instead, it contains metal strips that make contact with the prongs of an Electric plug inserted into the socket. It is Through these Contacts That the Electric current is Transmitted. Electrical Devices Which Connect to a Power Source Through a Power Socket are Considered to be Portable Because they can easily be Connected and Disconnected From the Power Source.

A Fan Speed Controller Controls The Voltage Across the Fan and Therefore Indirectly Controls its speed. A Fan Speed Regulator Actually Measures and Regulates the Speed of the Fan Using its Tachometer. Fan Speed is Controlled with Thyristor or Transformer Speed Controllers. the fan is Controlled by a Capacitor, and the Voltage across the fan Determines the fan speed. A Speed Control loop Can be Implemented That is Independent of Manufacturing Variances and Wear on The Fan.

A lightbulb Holder, light socket, lamp socket or lamp holder is a device which Mechanically Supports and Provides Electrical Connections for a Compatible Electric Lamp base. Sockets allow Lamps to be safely and conveniently replacedBulb holders come in Various Shapes and colors. Where the Lamp Holder has a Threaded Component Which is Used To Mount it On a Support. Common in table/stem of the lamp, and also used in Conduit Applications/Standard lights where the lamp holder is fixed to the base.