1.Txhawb kev them nyiaj ceev ceev xws li PD / QC / AFC / FCP
2.Kev nyab xeeb thiab them sai sai yam tsis muaj kev puas tsuaj rau lub roj teeb
3.Ntau tshaj 80% them tag nrho hauv 40 feeb
4.Muaj kev tiv thaiv kev nyab xeeb, overvoltage, undervoltage, overcurrent, luv Circuit Court, overtemperature, thiab lwm yam.