Scope of Application: Energy saver can be used in homes, shops, restaurants, offices, small factories, etc., suitable for air conditioners, washing machines, refrigerators, electric fans, TVs, water pumps, stereos, etc. Indicator Light: Plug the power saver into an AC outlet, and the color of the indicator light will turn green, then start working by keeping the device connected. Comprehensive : The power saver's internal leakage measures ensure complete for you and your equipment. And improve the power of electrical appliances to avoid waste of ineffective electricity. Surge : Voltage regulation, balance current, surge , to achieve the effect of power saving, effectively prevent overheating of electrical appliances, and prolong the service life of electrical equipment. Automatic Energy Saving: Power saver automatically helps you save daily energy waste, save money, and be safe and reliable. Gr.