Most vehicles like cars, trucks, buses, motorbikes and so on require electricity to work properly. The source of the electric current comes from the alternator. It is vital for engine and electrical equipments to run. When the current from alternator is measured with digital volt meter, the reading is inconsistent. This is caused by voltage fluctuation. The fluctuated voltage will cause the voltage signal of the sensors and actuators to fluctuate as well, causing the sensors and actuators to receive irregular signals. Thus producing inaccurate signals to the car’s ECU and other electrical circuits. When ECU and electrical equipments work less efficiently, it leads to the degradation of car performance. The main purpose of Voltage Stabilizer is to minimize voltage fluctuation and reduce distortion. The effect of this will be clean signal to and from sensors and actuators. This will allow ECU to work more efficiently with greater precisions. Therefore, accurate signal will allow engine to perform more efficiently too.  There are a lot of brands in the market but not all could provide the same functions. So, be extra careful when you make your purchase.