... reliability and self-diagostics.Model no: SPC-1250, 12V, 30-50A (for both pv and load)Model no: SPC-2450, 24V ... , 30-50A (for both pv and load)Model no: SPC-4850, 48V ... , 30-50A (for both pv and load)Product Features:Microprocessor which is ... solar street light system(1-15hrs) solar charge controller 30-50A 12/24/48V