ECO-WORTHY this Complete 12V/24V 1.6GPM Solar Water Submersible Pump Kit offers an ideal solution for remote watering without electric power, like the garden, farm irrigation, and tank filling, etc. Suitable for 4" wells or larger. Water Pump is used with solar panels and 12V/24V battery systems. This means easy hookup to most any existing solar panels or wind generator systems. 50 meshes stainless steel inlet screen. Corrosion-proof housing with stainless steel fasteners, for 4-1/8" wells or larger. Please avoid to make the pump work without water for a long time, or its lifespan will be shortened. Clean the pump regularly.