... four protect system 3) Place of origin:Weifang, Shandong,China 20KW diesel generator1,Model: GF-20 Power Output (Prime): 25KVA/20KWPower ... . Harmonic Wave Distorted: <4% Feasures(diesel generator)1) Rated output: 20KW(25KVA)2) 230V/400V or 120/240V, less than 219g ... ,fuel temperature displayiv) Audible and visual alarm lamp and buzzer 20KW diesel generator