Produce up to 4500 surge watts and 3600 rated watts of power. The WEN Watchdog Sensor helps protect your family by automatically turning off the generator if dangerous levels of carbon monoxide are detected. Our 181cc engine operates at a modest 62 decibels at quarter load. Fuel shutoff turns off the flow of fuel, allowing for the generator to use up the remaining fuel from the carburetor before automatically shutting down. This fights the blockages caused by stagnant fuel inside of the carburetor. Designed to mirror a pure sine wave, this generator limits total harmonic distortion to under 0.3 percent at no load and under 1.2 percent at full load, making it safe to run laptops, cellphones, monitors, tablets and other sensitive electronics. The lightweight 53 lbs. design makes for easy portability, while the ultra-efficient 1.27 Gal. tank provides up to 5.6 hours of half-load run time. The fully-packed panel comes equipped with two 3-prong 120V NEMA 5-20R receptacles, one 12V DC receptacle, one 120V TT-30R RV receptacle, an intelligent data meter, and two 5V USB ports. Maximize fuel economy by engaging the eco-mode button. This allows the generator's engine to automatically adjust its fuel consumption as items are plugged into and unplugged from the panel, preventing the unnecessary usage of gasoline. Need more energy. Easily link up any two 120V WEN inverter generators using a WEN 120V Parallel Connection Kit (sold separately).