switching power supply,switch power supply,DC power supply Protection:Over load,over voltage,short circuit ... Professional export switching power supply,switch power supply,DC power supplyProtection:Over load,over voltage,short circuitProfessional export ModelSpecificationS ... 0.5%±0.5%±0.5%DC output power120W120W120W120WEfficiency80%81%83%84%Adjustable range for DC voltage±10%±10%±10%±10% ...