... power factor 0.9,offering more stronger load capability 3.Intelligent fan speed control ,with 4 levels varying according to load ... with large LCD, plenty of operation information 12. Conformal coating PCB for more critical operation environment 13. 3:1phase into single ... rate and easy repair(MTBF>80000h,MTBR<0.5h) 17.Intelligent 10A charger,prolong battery lifespan by above 20%:interval three ...