1.air cooled 2.brushless 3.Fuel:gasoline ModelBNPG4000L/BNPG4000LEGenset TypeBrushless,Self Exciting,2 Pole,Single PhaseAC Frequency (HZ)50/60AC Voltage (V) 115/230,220,230,240 / 110,120,110/220,120/240Cont.AC Output (KVA)2.5/3.0Max.AC Output (KVA)2.8/3.3DC Output (V/A)12/8.3InsulationFPower Factor (COS)1Engine ModelBG210Engine TypeAir Cooled,4 Stroke,OHV Gasoline,Single CylinderDisplacement (CC) ...