An automatic voltage stabilizer is a device designed to maintain a constant voltage level in electrical systems. It automatically adjusts the voltage to protect sensitive equipment from fluctuations caused by power supply variations. This ensures that devices operate efficiently and safely, reducing the risk of damage. These stabilizers are commonly used in homes, offices, and industrial settings where stable voltage is crucial. They can handle a range of voltage inputs and provide a steady output, making them essential for protecting appliances like computers, televisions, and industrial machinery from voltage spikes or drops.