Epever TRIRON N Modular MPPT Solar Charge Controller, Dual USB Output, 10A-40A, 60/100/150VOverview The Epever TRIRON series is a modular MPPT solar charge controller (battery charger regulator) designed around a main unit (Power Module) TRIRON N that can be integrated with different display and interface modules to meet a variety of functional requirements. The controller can automatically identify and load the drivers of various modules. Available modules include three display modules: Basic 1 (DB1), Standard 1 (DS1) and Standard 2 (DS2);