... electron, medicine industrial manufacture and so on Product features1.Introduction of international advanced technology from Germany , High stablity ,smaill size ... ,ripple factor ≤1%, can be pulse output.3.Complete function of over current ,short circuit,overheating ,phase lack ,easy to ... sea level, reduced load operationworking atmosphereTemperature range -10 °C ~ 40 °C,Less than 90% humidity.