... inverter1000W stacking can achieve 4000W 800W Pure sine wave Grid Tie Inverter A.System Function 1,directly connected to ... outage or shutdown).* Islanding protection: electricity disconnected, the inverter automatically shut down output.2,Green LED:* Green LED ... outage or shutdown).* Islanding protection: electricity disconnected, the inverter automatically shut down output.2,Green LED:* Green LED ...