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Hi, I'm just curious about the differences between two solar pumps. There are 2 submersible well pumps, they both have a head height of 15 meters but one pump requires 200 W of power while the other needs 370 W. What's the reason behind but having the same performance but different needs for...

I recently bought a submersible 15 meter maximum head height pump. The maximum power rating for the pump is 370 Watts and the voltage is 12 to 24 volts and it has no need for an external control box (regulator). It performs at a maximum pressure of 1.2 bar. I bought a 330 Watts monocrystalline...