HB17...SL: output voltage and current are showed by the LED numeral meterService occasion:Testing equipment, high-middle academy, apparatus, automatic control, electrical equipment, and communication equipment Parameters:Input voltage: AC 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) Working time: uninterrupted for a long time Output current: regular, uninterrupted, debug (0-rating amount)Ambient temperature: 0±40°C Relative humidity: ≤90%

DC Power Supply 12V/15A,adjust type