A Single-Phase Energy Meter is a sort of Watt-Hour meter. It consists of two Electromagnets. Single-Phase Energy Meter is also Popularly known as a watt-hour meter. One Magnet is called the shunt magnet Ml which is Mounted with a Pressure coil. The Pressure coil is a long coil Made of fine Copper wire which is connected across the Supply line. Single-phase energy meters are suitable for measuring single-phase AC current frequencies of 50/60 Hz, which are used for fixed indoor installations.

A junction box is an Electrical Enclosure that Houses one or More Wiring Connections. The box Protects the Connections, Environmental Conditions, From Which Usually Contain Vulnerable Points Such as Wire Splices, and Accidental Contact. A Junction box is an Enclosure That Protects a Connection Of 2 or More Wires Carrying Electrical Current. The use of Junctions Removes the Need to Run a Wire From Every outlet or Switch Back to the Main Service Panel. This Level of Protection is Needed to Prevent fires and MaintainRreliable Connections.

CFL stands for Compact Fluorescent Lamp which is an improved version of tube lights of earlier days. Like tube lights, it is a vacuum glass tube with fluorescent powder coating which is not as long and straight as tube lights but curved/twisted compact, or small in size. Like a tube light, it has electrodes or filaments at both ends. But in this case, instead of a choke, there is an electronic circuit that drives the Compact Fluorescent Lamp. Because the red wave is less in the light of the Tubelight and Compact Fluorescent Lamp, the object looks a little pale or the correct color of the object does not appear.