370W Built-in Controller Solar DC Screw Deep Well Pump Stainless Steel for Storage Battery / Car Accumulator / Electric Bike — Solar Fountain Water Pump Kit Q_3SP2-100-D4860-750BI

Solar DC brush-less series pumps are designed for agricultural irrigation, deep well extraction and household water supply. The solar panels feed the pump directly so it will automatically start and stop; the unit features a compact structure, modern styling and easy operation and maintenance. For planning runtime, if system power generation efficiency is taken as 50%, the pump can be rated for about 6 hours a day and 8 hours a day. To size the solar array, first determine the pump’s input power. Then divide that input by the solar panel’s power generation efficiency (use 65%, up to 70%) — equivalently multiply the pump input by 1.5 — the resulting value is the nominal solar panel power required to drive the pump.