... lead time, easy front-panel TJB-2D Digital Programmable Frequency Conversion Power SupplyThe TJB-2D series has models from 500VA ... 1.5%(impedance load)Response time2msRead outputVoltage , Current, Power, Frequency, LED digitalProtections functionOver voltage, over load, over temperature ... HumidityTemperature :0-45oCHumidity :0-90% (no-coagulating) Digital Programmable Variable Frequency AC Power Supply