I've tested the pump. i connected 2m of garden hose, and I've been pumping water toward my sink (around 80cm above the pump which was located in the 40l tank). After 5 minutes 20litres of water was pumped, what gives 240 litres per hour. I was powering the pomp from stabilized power suply (13V), pump suck 1A ( and it would take more, as i noticed max current limitation at 1A). I've bought this pump for my caravan/camper car, and i think that the efficiency is enough for such usage.
Not received the order Refound