●Replacement for AVR SE350 for Marathon and stamford alternator. ●Replacement for AVR SE350 Voltage Regualtor is an encapsulated electronic voltage regulator that controls the output of a brushless AC generator by regulating the current into the exciter field. ●Input Voltage: 190-240V ac. ●Roll off Frequency 54-61Hz for 60Hz. ●Carton box,size: 120*75*60mm.