1、[Working Principle] Solar micro inverter is a device that converts solar panel DC into AC, with small size and capacity, commonly used in small solar system. 2、[Usage Requirements] To make the grid tie micro inverter work properly, it must be connected to the grid normally, and when the grid stops working, it will also stop generating electricity. 3、[Positive And Negative Ends] The positive and negative ends of the solar panel should not be connected backwards. If you extend the solar panel cable, you should be careful about this issue. 4、[Installation Environment] This microinverter supports IP55 protection rating, but it should be installed to avoid direct sunlight and rain, and placed in ventilated, dry and cool conditions. 5、[Voltage Requirement] To ensure normal operation, the voltage of the PV panel should not exceed the maximum input voltage of the solar grid tie inverter (Voc&lt;50V). Item Type: Micro Inverter Material: Aluminum Alloy Product Size: Approx. 22.7 x 7.7 x 3.7cm / 8.9 x 3 x 1.5in Gross Weight: Approx. 552g/2.0oz Photovoltaic Output Number of Connectors At Input: 1set (Group) Maximum Power Point Tracking Range: 24V-40V Operating Voltage Range: 18V-50V Maximum DC Input Voltage: 50V Starting Voltage: 18V AC Output (AC) Single Phase Grid Type: 120V, 230V Rated AC Voltage: 120VAC, 230VAC Output Voltage Range: 120VAC: 80V-160V 230VAC: 180V-280V Rated AC Frequency: 50Hz, 60Hz Output Frequency Range: 50Hz: 47.5Hz-52.5Hz, 60Hz: 57.5Hz-62.5Hz Output Power Factor: >0.99 Efficiency Maximum Conversion Efficiency: 92.5% CEC Weighted Efficiency: 120VAC: 90.5%, 230VAC: 91.5% Tracking Efficiency: 99.9% Nighttime Loss: <700mW Mechanical Data Operating Ambient Temperature: -40℃ to +65℃ Storage Ambient Temperature: -40℃ to +85℃ Protection Level: IP55 Cooling Method: Natural Cooling, No Fan Other Features Isolation Characteristics: High Frequency Transformer Isolation Comprehensive Grounding: PE end in AC cable line is the grounding wire of the equipment, no other grounding port. Protection Mode: Islanding Protection, Voltage Protection, Frequency Protection, Temperature Protection, Current Protection, etc. 1 x Micro Inverter 1 x Instruction Manual 1 x AC Cable