... LCD Display,Short Circuit high Voltage Protection. ac voltage stabilizerAutomatic Voltage stabilizer, Voltage Stabilizer, Automatic AC Voltage Regulator, Single Phase Voltage regulator ,power supply, relay ... Frequency : 50/60HZOutput Voltage : 220V±8% ACCircuit Protection : Circuit BreakerDisplay: Digital display input voltage/output voltageProtection: High Voltage Protection,Overload Protection,High ...