Detailed information: 1.Canopy: soundproof,waterproof 2.Noise level:below to 75Db by 7m distance (62~75Db) 3.Soud attenuated enclosure:special noise elimination setting restrains the machinery noise and the unit has perfect all-weather service property and the outside steel material features preferable corrosion prevention capability 4.Sound-absorbing fire-retardant cotton 5. Metal parts are coated with electrostatic powder paint 6. size: 10 container 7. Engine: Cummins or clients enquiry 8. Alternator: Leroy Somer,Stamford or Marathon 9.Rated Frequency:50HZ/60HZ 10.Rated Speed: 1500 RPM/1800RPM