The new Steca Solsum F-Line continues the huge success of one of the most used SHS controllers. With a power range of up to 10 A at automatically recognized 12 V or 24 V it fits to a system sizes of maximum 240 W. The circuit board is completely electronically protected and with the new designed LED user interface it is easy to check the battery state of charge at any time.  Large terminals guarantee a simple connection of solar panels, battery and load. The brand new Solsum works on PWM as a low loss serial controller.