Understanding pump - comparing specifications

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Sprinkler

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Hi, I was wondering about the meaning of some pump specifications. For example, there is 1 pump for around 90 euros - Spec: 900w, Head lift: 36m, pressure 3.6 bar. 5,200 Liters/h, anti-return valve, heat protection. Then compare that to another pump for around 100 euros: Head-lift: 50m, 1200 liters/h, Max pressure: 10 bar, Engine output: 350w. But what I don't understand is, the cheaper pump is supposed to deliver 5,200 Liters/h, but it is only 3.6bar, whereas the more expensive one is 1,200 liters /h at 10 bar pressure. Is it because the cheaper pump uses 900 w versus the 350w of the more expensive (1,200 L/h) pump?
In short, which pump would fill a 200 liter tank faster, if the head lift is about 30 meters? Thanks.
 
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