UPS,off line type UPS-500VA, UPS-600VA, UPS-1000VA, and UPS-1500VA 1, Off-line UPS:UPS-500VA, UPS-600VA, UPS-1000VA, and UPS-1500VAThis kind of interrupted power supplies adopt advanced ... -ray systems, communication systems, medical equipment, duplicators, stereo sound equipment, industrial automatic equipment, color film developing equipment, digital control machine tools ...