Description: Input Voltage: 190-240V AC, Roll off Frequency 50-60Hz. Output Power: Continuous 73V dc at 3.5A dc(255w); Power Dissipation: 8 watts maximum. Adjustable frequency compensation. AVR SE350 Voltage Regulator is an encapsulated electronic voltage regulator that controls the output of a brushless AC generator by regulating the current into the exciter field. EMI: Suppression internal electromagnetic interference filter (EMI Filter) Sensing & Roll Off Frequency 54-61 Hz for 60 Hz Operation 45-51 Hz for 50 Hz Operation. AVR SE350 for alternator; Voltage Buildup: Internal provisions for automatic voltage build up from generator residual voltage as low as 10 VAC. Specification: Material: Alloy and Plastic Size: 99.5x67x47.5mm/3.92x2.64x1.87inch Package Includes: 1 Piece AVR SE350 Automatic Voltage Regulator