Description:  Microinverters turn the power from your solar panels into usable electricity. Single-phase microinverters are usually used in residential（Balcony Power Station）.  Grid Tie Inverter can monitor in real time the power generated by the inverter through the AC digital meter.（Voltage, current, active power, electrical energy, frequency, power factor）No fire risk and electric shock during installation and operation due to low DC voltage(up to 50V) compared with at least 200V from string inverters.  Grid Tie Solar Inverter suitable for 2X400W solar panel (Vmp30-42V; Voc36-50V) Vmp = working voltage;Voc = open circuit voltage. Optimized for high powered 60-cell and 72-cell* modules.  Each MC4 branch cannot exceed 400W Stackable Connection; High precision phase detection;Over and under voltage protection; Over and under frequency protection; Islanding protection.   Almost no maintenance work is required, clean the dust on the photovoltaic panel occasionally.     Specification:  Rated voltage: 220V.  Recommend PV: 2*400W.  Reccommend PV (Voc): 34~50V DC.  MPPT Tracking voltage: 28~40V DC.  Maxi Input Current: 27.2A.  Rated output current: 3.63A.  Max units per branch: 10PCS.  Rrequency: Auto switch 50/60Hz.  Ambient temperature: - 40℃to +65℃.  Dimensions: 283mm×200mm×41.6mm.  Weight: 1.62kg.  Cooling: Self-cooling