Solar Charge Controller, MPPT Solar Controller 48V 1,MPPT function 2,Overcharge protection 3,Short circuit protection Solar Charge Controller, MPPT Solar Controller 48V1. IntroductionThis MRWS-MPPT30 20A solar controller (also known as MARS ... controller can increase the efficiency of PV modules by 10%-30%. MARSROCK MRWS-MPPT solar controllers 10A-60A include 12V series, 24V series and 48V series ...