Want to to save your electricity bills? It’s so easy! Plug & Play Grid-tie Solar Power Kit With our EZ solar kit, just plug in your wall outlet and save your electricity bill right away. Supports smartphone APP monitoring. How does it work? During the day, the solar panel generates electricity and directly supplies electricity to the home through the inverter, reducing the power consumption from the utility grid and thus reducing the electricity bill. For safety reasons, when there is a power outage, the inverter will immediately stop output to ensure safety. The product is UL certified. (4) 200W solar panels (2) pairs of black + red 20′ solar cables with connectors. (1) 900VA grid-tie micro-inverter, built-in WiFi module. (1) 16′ Power cord with Nema-15P plug (for wall outlet). (4) Z-type solar panels mounting brackets. It’s ready to use, nothing else is needed.