Rated watt: 3,500W Surge watt: 4,000W Rated watt: 3,500WSurge watt: 4,000WFrequency: 60HzOutlets: two - 120V (20A) AC, one - 120/240V (30A) AC and locking receptacleVoltage regulate: automatic voltage regulator12V (10A) DC output: automotive battery charging120/240V voltage selector: easily run a variety of electric appliances and toolsFuel tank capacity: 4 US gallons (15L)Run time at 50% load: ...