Professionals Comes along with an eco-mode function that permits the motor to automatically alter gas intake Features a fuel shutoff characteristic that maximizes the generator’s lifespan Includes two 3-prong 120V receptacles, a 12V DC receptacle, and 5V USB ports Observe Susie's Story I looked at a pair of various makes https://apasof.com/getting-began-with-propane-a-information-for-job-web-site-use/