The Champion Power Equipment 100231 5500W dual fuel RV ready portable generator with wheel kit operates off gas or propane straight out of the box (propane hose included). on gasoline the generator will produce 6900 starting & 5500 running, & on propane 6250 starting & 5000 running. This unit makes a great solution for backup power during an emergency & will power the essential items you need & more in a power outage – lights, sump pump, refrigerator, modem/router, security system, furnace blower, fan, TV/DVD, computer, smartphone/tablet charger, microwave, etc. Since propane has such long stable shelf life you don’t need to worry about having fresh gasoline on hand during an emergency. It can also handle multiple power tools on your next project or job & with comes ready with a standard 30A locking outlet. The 5500W dual fuel portable generator operates at 74 dba from 23′. & has a run time of up to 8 hours on a full tank of gasoline or 6.5 hours on a 20 lb. Propane tank at 50% load. The generator features guard, a built-in surge protector which protects your appliances from any spikes in voltage above a safe Threshold, as well as cold start technology which optimizes the generator to start easily in cold weather. The generator is portable & comes in a durable steel frame with a folding handle & never-flat tires for easy maneuvering & transportation. The 5500W dual fuel portable generator comes with a patented fuel selector switch that allows for quick & safe switching between fuel sources. It also comes with 120/240V 30A locking (L14-30R) & four 120V 20A household outlets (5-20R). the intelligent (volts, Hz, hours) allows you to easily Monitor power output & track maintenance intervals.