... . 2) Head:50m. 3) Flow: 1000L / hour. Solar brushless water pump descriptions:1) DC 24v,480w,no need inverter,daytime working without battery ... ,50m,60m,70m,80m,90m,100m,150m for choice.3) Water shortage & voltage/current protection,controller inside.4) Flow: 1000L / hour ... solar panel directly,daytime no need battery even cloudy. 24v dc solar submersible brushless water pump