... apply in car,marine,solar electric power/wind electric power,motive office,offer power to emergency work,outside work.2), ... P300MAIN FUNCTIONPure sine wave output(THD<3%)Continuous Power300WPower ON-OFF switchPeak Power600W Input voltage range:-15%~+25%Input ... cooling fanOutput Frequency60±3HZ/50±2HZTwo-color indicators display power and fault statusUSB OutputNoProtections:short circuit,overload,over ...