. stabilizer can make the voltage more stable, preventing un-stable voltage, using power stable and balance to saving power and prolong the using life of home appliance. 2.install a special unit in electricity saving box to prevent current protruding wave and protect home appliance. 3. electric control capacitor able to balance current, fully improve using power of home appliance and avoid the waste of unwanted power. 4. be able to working in full day, i.e. able to working in 24 hours per day. 5. suitable for cooler, washing machine, refrigerator, fan, TV, pump, home theater, daylight lamp. 6.Genenally applied in home, company, store, small factory etc. 7.voltage range:90V-240V/50Hz-60Hz Main function: 1.to provide stable operating voltage to save power and prolonged using life of home appliance. 2.to provide exact and stable operating voltage to improve quality of supplying-power. 3.reduce home appliance heating to prolonged using life of home appliance and save maintenance cost. 4. increase the capacitance of the system device to reduce the pression of switch and circuit. 5. easy to install, once installed, it can save your money at once.