A servo regulator is a very technical device mostly used by people related to the electrical industry. First, one must know that a Servo Regulator is a device that stabilizes the varying voltage in your home/office/factory etc. As in many places, the voltage fluctuates every few minutes, and this fluctuation could destroy your electric equipment or devices. The servo voltage stabilizer is used to balance out this voltage issue and make the voltage stable and constant. There are different types of servo voltage stabilizers available in the market, and most of them are from known and popular manufacturers. These voltage stabilizers are of different types. These types include linear types stabilizers, and there are also the roller types servo regulators. There is no need to get confused between a regulator and stabilizer because both are different names of a single device or product. Mostly, it has been observed that these kinds of stabilizers are used in the big industries or manufacturing plants as there are very big machines installed there which need a lot of power to run. So much power could stress the voltage, which is not the case with the common domestic power usage. There could be many other reasons and facts behind this fluctuation of voltage, such as voltage is low in the day compared to night, and voltage fluctuates due to issues like rain, holiday hours and whatnot.