... protection Solar Charge Controller, MPPT Solar Controller 48V1. IntroductionThis MRWS-MPPT30 20A solar controller (also known as MARS ROCK ... the efficiency of PV modules by 10%-30%. MARSROCK MRWS-MPPT solar controllers 10A-60A include 12V series, 24V ... substantially, thus the maximum output power increases substantially. This MRWS-MPPT solar controller can intelligently regulate the working voltage of ...