^_Features:         • Pure sine wave output ( THD < 3% ) • Input & output completely isolated design • High efficiency 90-94% • Capable of driving inductive & Capacitive loads at the start moment. • Two LED indicator:Power-Green,Fault-Red • 2 times surge power • Loading and temperature controlled the cooling fan. • Built in advanced microprocessor to make friendly interface with user. • USB output port 5V 2.1A • With Remote controller function /CR80 or CRD80 Remote controller with 5m cable optional • LCD display function optional  ^{_{Protection  function         More details}}       参考网站：https://www.retekprecision.com/certification/