Features: Save energy sources efficiently, the power saving rate is up to 10%~35%. Prolong 40% service life of electrical equipment. Stabilize the voltage and balance the current source. Reduce current wave form distortion. Prevent instant super high pressure and protect devices. Service life is up to 5~10 years. Reduce circuit's temperature and reduce the line loss. Fully compliant with safety standards. Protect the environment. Easy to use.