... Frequency:50HZ or 60HZ3)2,3,4,6,12 cylinders4)low fuel consumption5)Rated power factor:0.8(lagging)6)102 ... , running time etc.2Warning when low or high voltage, low or high frequency, over current, over or low speed, low or over battery voltage etc ... .3Over load protection, over/under frequency protection, over/under/imbalance voltage protection, and low oil ...