Morningstar’s SunSaver is the world’s leading small solar controller for both professional and consumer applications including standard features and capabilities not found in any other small PV controller. The SunSaver 20L 12 volt controller offers most of the same features of the ProStar line, but without the battery status LED’s, automatic equalization or the optional LCD display. The SunSaver 20 is a PWM controller and can control up to 20 array amps (can be paralleled for 40 amps or more). The SunSaver’s advanced design delivers outstanding performance and value. The SunSaver 20L also has a low-voltage disconnect (LVD)
The Morningstar String Calculator will help you decide how many PV modules you may use in series and parallel with a Morningstar charge controller.