We can supply 100-7500w solar water pump for farm. No need battery, only sun power ... including poor tracking performances, unstable or even cause water hammer damaging when the irradiation on the array changes ... is dispensed with energy storing devices, and stores water instead of electricity. It improves the reliability of ... panel: 200W*2pcs=600W3. Inverter: 500w AC power4. Water pump: 300W-400W