... computers and labs3) For others which need frequency conversion power supplyTechnical characteristics: Output power500VA200KVACircuit modeIGBT/PWM ... for 50Hz220V,60Hz110V,60Hz120V settingLoad stability±1%Frequency stability≤0.1%Waveform distortion±1.5%( ... impedance load)Response time2msRead outputVoltage , Current, Power, Frequency, LED digitalProtections functionOver voltage, over load, over ...