Product specification: 1.Engine:Cummins, Yanmar, Volvo, Perkins 2.Alternator: Leroy somer, Starford, Marathon 3.Longer life: Natural gas engine has a life of over several years if it is properly operated and maintained 4.low operation cost: Natural gas has a rich reserve with low cost and a high rate of return 5.High profit: Low operation cost, supply of electrictity and thermal power at the same time, low maintenance cost. 6.coupled with brushless 7.Well performed control system, high quality monitor instrument, with sound and light alarm devices, auto shutdown 8.Protection function:over-current, under voltage, auto-regulate voltage, reverse power 9.monitor function: speed, water, temperature, lube-oil temperature, lube-oil pressure, exhaust temperature 10.Gas consumption less than 0.33 CBM/KWH