... high efficiency. With aluminum housing, Integrated interface system, they are light and handy, making installation easier. They are the ideal inverters for small PV ... , DC isolation monitoring, DC monitoring,Grounding fault monitoring, Grid monitoring, Island protection, Short circuit protection, Over temperature ... -11:12Maintenance5 years,(10 years Optional) . Grid-tied Solar Inverter(1.5KW,2.2KW,3KW)