... 60Hz4) Power factor: 0.8Engine: LOVOL , Deutz , Cummins, Isuzu, Weichai, Yangdong, New holland etc.1)Cooling method ... )Rated speed: 1,500 / 1,800rpm4)Noise level: 65dB to 75dB 7 meter awayAlternator:1 ... ):low and high frequency,low oil pressure protection and high water temperature protectionGuarantee:Water cooled diesel generator ... ,we will provide free spare parts for you to repair it,Over expiration, ...