Sungrow SG250HX-V117 string inverter. This inverter has an astonishingly high efficiency of 99% over 12 MPPT modules. It has a built-in PID protection function as well as PID recovery. In addition to low costs, it also provides us with intelligent service and conversation - contactless start-up, remote updates as well as online scanning and diagnostics. In addition, the proven safety by IP66 and C5 protection is also convincing. The inverter with a power of 250,000W also has a 10-year manufacturer's warranty.