EPA III and CARB-Compliant 79.7cc 4-Stroke OHV engine produces 2250 surge watts and 1800 rated watts Extremely quiet 53 dB operation comparable to the sound of a normal conversation according to the US Department of Health and Human Services Fuel shutoff maximizes the generator’s lifespan by using up the remaining fuel in the carburetor before shutting down Produces clean power to safely operate sensitive electronics such as smartphones, tablets, televisions and computers