12vDC 1amp power transformer with 2.1mm connectorTemperature RangeOperating 0 ~ +40OC / Storage -20 ~ +60OCHumidityOperating 20% ~ 80% / Strorage 10% ~ 90%Hold-up TimeR 5 mSVoltage Wide Range90 - 264 VACFrequency47 - 63 HzEfficiencyLevel V ...