At less than 49 pounds, this inverter is one of the lightest 4000-watt inverters in the industry, 64 dBA from 23 feet is perfect for camping, tailgating or to backup a few home essentials, with 4000 starting watts, 3000 running watts and up to 10 hours run time, plus features CO Shield carbon monoxide auto shutoff system, The optional parallel kit enables this inverter to connect with another 4000-watt Champion inverter to double your output power, Includes a 120V 25A TT-30R outlet, a 120V 20 A household duplex outlet (5-20R) with clean electricity (less than 3% THD), plus a 12V automotive-style outlet, and Parallel outlets, Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts