This solar charge controller, based on PWM technology, offers an excellent solution for charging your batteries with solar energy. It is suitable for panels with 36 cells (in 12 V systems) as well as for panels with 72 cells (in 24 V systems). Thanks to its splash-proof design, suitability for high ambient temperatures, and compatibility with negative grounding, it is the perfect solar controller for applications in maritime and automotive sectors. An optional temperature sensor is available. Safety notes: Safe, user-friendly, and flexible. The SCM20 PWM is suitable for all types of lead-acid batteries, both 12 V and 24 V. The device features a large display and a switchable output with an evening/night lighting function.