Purchased the 250watt **** type solar pump. Arrived well packaged and quick. I installed pump initially with 380 watts of solar panels and the pump didn't work. After contacting support they suggested I needed more panels so I then installed 500 watts of panels, the pump still didn't work so I contacted support again. This time they sent me a new controller with instructions to fit it myself which involves dismantling the pump and rewiring new controller, once I had completed this the pump worked straight away. Currently I am getting approximately 18 litres a minute at about 20m head so so far ( after a week of running) so good. Support was good but I was a little dissapointed that despite there information saying you only need 380watts of panels I had to put extra panels on before they sent me a new controller. I suspect there may have been problems with the controllers in the past as support quickly came to the conclusion the controller was faulty, also the new one they sent me seemed to be slightly bigger and enclosed in resin so maybe is better quality than the one fitted to the pump originally. Anyway the pump is working now and time will tell how reliable it is. The pump was installed to replace my 8ft meters windmill and it provides a similar volume and flow.