... performance, has full protections, basal and fixed position switch for frequency settings, easy front-panel. Its widely ... distortion 7) V, A, W, Hz display accurately, digital, simultaneously8) With full protections (over voltage, over load, ... 151V300VOutput frequencyBasal: adjustable 4763Hz (400Hz option)Fix :position switch for 50Hz220V,60Hz110V,60Hz120V settingLoad stability±1%Frequency stability ...