... Range, LCD Display, Short Circuit&Over /low Voltage Protection. Automatic Voltage regulator, AC Voltage Regulator, Single Phase Voltage regulatorFEATURE :LCD Display New ... : 220V±8% ACCircuit Protection : Circuit BreakerDisplay: Digital display input voltage/output voltageProtection: High Voltage Protection,Overload Protection,High ... : -10~+50Compliant Standards: CE automatic voltage regulator