... electricitysaving,excellent design,reasonable constriction,easy operation,wide input voltage range,etc.The voltage stabilizers are the universal protectors in the high ... ±10%Frequency50-60HZVoltage regulating speed>7.5V/secVoltage for over voltage Protection246±4VAmbient Temperature-10+40Waveform distortionNo additional waveform distortionDielectric strength1500V ...