WEN 56400-CA 4050-watt  Gas Generator, 23-Inch by 17.4-Inch 212Cc engine provides 4050 surge watts and 3500 rated watts Runs 11 hours at half load on 4-gallon of gas Voltage selector allows easy switching from 120v to 240v as needed Low-Oil shutdown and overload protection Carb & EPAIII compliant