A servo voltage stabilizer is a stabilizer which constantly monitors the output voltage and controls variations in the input voltage by the movements of a motor. In other words, it automatically regulates the voltage. This motor decides the output voltage on the transformer. It is considered to be a cheap and good voltage stabilizer. This is a perfect solution to protect the appliances from voltage fluctuations. Enertech India the leaders in voltage stabilizer manufacturers, offers advanced micro controller based voltage stabilizers.