Feature: 1. IP65 waterproof streamline designed can effectively prevent rainwater from eroding the surface. 2. Full digital control, reverse power transmission, intelligent monitoring and management, low operation and maintenance costs. 3. When the output current of the solar cell is extremely small in cloudy days, the inverter automatically turns on the 6‑level power search function to achieve continuous stable and efficient power output at low power. 4. The inverter adopts accurate dynamic differential pressure MPPT function and APL function. 5. Can automatically adjust the power of the solar panel to the maximum output, just connect the solar panel directly to the grid‑connected inverter, no need to connect the battery. Specification: Item Type: Grid Connected Inverter Product Material: Aluminum alloy Color: Silver Frequency: 50/60Hz Maximum DC Input Voltage: 54VDC Peak Power Tracking Voltage: 22-45V Operating Voltage Range: 17-50V Maximum DC Short-circuit Current: 40A Maximum Input Working Current: 27.2A Cooling Method: Self-cooling Communication Mode: Power line carrier Power Transmission Mode: Reverse transmission, load priority use. Package List: 1 x Grid Connected Waterproof Inverter1 x User Manual 1 x Installation Package (2 Screws, 2 Nuts, 2 Washers, 2 Washers) 1 x Connector1 x US Wire Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.