... . Reasonable price with good quailty 4. Professional manufacturer 40kva Quanchai series diesel generator sets Features: 1. Low cost, high efficiency, compact ... . Frequency: 50/60HZ Speed: 1500/1800 r.p.m 3. Power Factor: 0.8(lagging) Diesel engine: Cummins, Deutz, Lovol, Isuzu ... ,low oil pre,over crank,pre-warning system 5. Run,Power,indicator 6. Unique sensors protection, adapt to all sensors Automatic ...