Specification:        Item Type: Inverter Model: WVC-700R3-433/WiFi AC Output Voltage: 120V/230V (automatic identification) Rated Output Power: 700W Operating Temperature Range: -20& 8451; to +50& 8451; Monitoring System: Mobile APP Waterproof Rating: IP65 NEMA3R Cooling Method: Self-cooling Rated Frequency Range: 48-51Hz/58-61Hz     How to use: Step 1: Install the inverter on the bracket of the photovoltaic panel with the screws provided with the machine, as shown in the following figure: Step 2: Connect the positive and negative poles of the DC connection plug on the photovoltaic board to the DC input terminal of the inverter, as shown below: Step 3: Open the waterproof cover of the AC output connector of the inverter and connect the AC cable to the AC waterproof plug. The connection method is as shown in the plug connection diagram: Step 4: Connect the AC output cable to the AC main cable; Step 5: Repeat steps 1 to 3, install and connect all inverters;  Step 6: Connect the AC main cable to the utility grid to start your green energy journey.            Package List:    1 x Inverter    1 x User Manual    1 x Ac Connection Line    2 x Fixing Screw    2 x Fixing Nut    2 x Fixed Gasket    2 x Fixed Washer