Multifunction Power Supply? 4-stroke petrol generator produces 3500 watts of peak power as well as 3200 watts of operating power. It is easily able to keep the lighting system or RV for a small family home which includes an air conditioner and even more appliances such as a refrigerator running at the same time, a great emergency power source for home?? INVERTER TECHNOLOGY? Inverter technology generates pure sine waves to provide safe, high-quality power for sensitive appliances without affecting their useful life. Can charge phones, laptops, cameras and other digital devices directly, run quietly?? Extra-long run time? A full tank of petrol 7.5L will run for at least 8.