... of:A solar array,a terminal cabinet,a solar pumping dedicated controller,and a universal submersible or surface pump driven by ... 1.Battery free,the system stores water instead of electricity,great bills saved.2.Plug-Go,simple ... OHz~ 50OHzDefinition:TDH:Total Dynamic Head,the sum of the static water level,discharge elevation,well draw ... pipe and fittings. high quality solar powered irrigation systems