Features: 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<50V). Specification: Item Type: Micro InverterMaterial: Aluminum AlloyProduct Size: Approx. 22.7 x 7.7 x 3.7cm / 8.9 x 3 x 1.5inGross Weight: Approx. 552g/2.0ozPhotovoltaic OutputNumber ofConnectors At Input: 1set (Group)Maximum Power Point Tracking Range: 24V-40V AC Output (AC)Rated AC Frequency: 50Hz 60HzOutput Frequency Range: 50Hz: 47.5Hz-52.5Hz 60Hz: 57.5Hz-62.5Hz Output Power Factor: >0.99EfficiencyMaximum Conversion Efficiency: 92.5%CEC Weighted Efficiency: 120VAC: 90.5% 230VAC: 91.5%Tracking Efficiency: 99.9%Nighttime Loss: <700mWMechanical DataOperating Ambient Temperature: -40 to +65Storage Ambient Temperature: -40 to +85Protection Level: IP55Cooling Method: Natural Cooling No FanOther FeaturesIsolation Characteristics: High Frequency Transformer IsolationComprehensive Grounding: PE end in AC cable line is the grounding wire of the equipment no other grounding port. Package List: 1 xMicroInverter1 x Instruction Manual1 x AC Cable Note: Manual measurement please allow some errors.