Functions and Using Instructions: 1. Provide stable and balanced voltage, prevent voltage instability, let electricity stable equilibrium achieve power-saving effect, thus extending the service life of the electrical product. 2. Products with resistance to convex wave, convex against current wave, protection of electrical appliances. 3. Capacitors, electronic control, balance the current, improving the use of electrical appliances power, avoid the waste of electricity invalid. 4. Provincial electric equipment itself does not consume electricity, 24 hours a day, 365 days all-weather use did not increase the electricity burden. 5. Suitable air conditioning, washing machines, refrigerators, electric fans, TV, water pump, acoustics, fluorescent lamp, etc. 6. In a common family, companies, shops and small factory, is in the scope of application. 7. Suitable for voltage 90 v to 240 v / 50 hz - 60 hz;