• Model ECO12990ES Brand FIRMAN AC Frequency 50 Hz Starting Watts 9000 W Running Watts 8200 W Alternator T ypeBrush,self exciting, synchronous,2-pole,100% Copper Enamelled Wire, Silicon Steel Strip Voltage Regulation 220V Phase Single Phase Engine TypeSFE 440E Max 16.0HP, 4-stroke single cylinder, OHV, air cooled DC Output （HP/ KW）NONE Starting SystemRecoil/Electric