1.high efficiency of fuel usage 2.3-ground electrode spark plug makes the ignition quickly 3.larger muffler 4.lpg gasoline LPG2500CXLPG3500CXLPG6500CXLPG7500CXAC Frenquency HZ50HZ60HZ50HZ60HZ50HZ60HZ50HZ60HZAC Output V115/230,220,240/110,120,110/220,120/240Cont.AC Output kva2.0 2.2 2.5 3.0 4.5 5.0 5.0 5.5 Max AC Output kva2.2 2.4 2.8 3.3 5.0 5.5 5.5 6.0 DC Output (v/a)12/8.3InsulationFPhase ...