An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the power of a signal (a time-varying voltage or current). It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude of a signal applied to its input terminals, producing a proportionally greater amplitude signal at its output. The amount of amplification provided by an amplifier is measured by its gain: the ratio of output voltage, current, or power to input. An amplifier is a circuit that has a power gain greater than one

Hello Aspirant

Can you re write your question again as I,m not able to understand what are you exactly asking for

If you can please reframe the question I'll be glad to help you!

What is that you exactly need regarding energy efficiency service ?Please let me know

Regards!