... Testing equipment, academies, apparatus, automatic controls, electrical equipment, and communication equipmen HB17...SL: output voltage and current are showed by ... 220V±10%, 50±5Hz Load efficiency: CV≤1x10 +2mV, CC≤2x10 +3mA Frequency: 50-60HZ Waveform and noise: CV≤1mVrms ... , CC≤5mArms Output voltage: regular, uninterrupted, debug (0-rating amount ...