1)grid tie inverter 2)High conversion efficiency 3)MPPT efficiency(>97%) Using the ... )Relative Humldity<90%RH(Do not wet with dew)Protection(Inverter)(inverter)Input overvoltage,output short circuit,overloadoverheat,output DC componentProtection(Grid ... voltage of grid,over/under frequency of grid on grid inverter,grid tie solar inverter