solar cell controller : DC12V/24V/48V 40A 50A 60A controller For off-grid solar ... ,solar controller ,dc solar controller :10A-60A DC12V/24V/48V Solar charger controller Series is our new generation controller for ... load-off voltage of the load, 12V,24V and 48V should no less than 10V,20V and 40V respectively. ... 48V18pcs/ctn50A 48V20kg/ctn60A 48V1.1kg/pc 12V/24V 48V 40A 50A 60A solar cell controller