... ISO certification approved 3,The inverter is much applicable for pump wate Power range0.25-2.2KW,220V ... occasion.Main feature1,CE,ISO certification approved2,The inverter is much applicable for pump water3,Overload: 150 ... 180%, 10 seconds4,Continuous operation function at momentary power failure 5,Perfect fault protection and auto current ... are optional. 50HZ/6050HZ pump water inverter, fan type inverter