... , be load the power to 1200VA Specifications1,Relay Type Automatic Voltage regulator 2,Input voltage range: 120V~260 Vac, 50/60Hz 3,Output: 220V4 ... stability needed to deliver peak power and good performance Applications: computer,test equipment ,light equipment,medical equipment ,duplicators,stereo sound equipment ... relative humidity:10%RH-102%RH,Non -condensing 1200W 220V voltage regulator