... / 60Hz4) Power factor: 0.8Engine: CUMMINS, PERKINS, DEUTZ, VOLVO, and China Brand ENGINE,etc1)Cooling method: closed water cooling or air force ... / 1,800rpm4) Noise level: 75dB to 80dB 7 meter awayAlternator1) Brand: Stamford or Leroysomer or Our WT series2) Rated output: 24kw ...