50% quieter and 20% lighter than an equally rated traditional generator, plus features CO Shield carbon monoxide auto shutoff system 64 dBA is great for RVs, tailgating, your next project or home backup, with 4500 starting watts and 3650 running watts for up to 22 hours run time on gasoline RV Ready with a 120V 30A RV, a 120V 20A household duplex outlet with clean power (less than 3% THD), plus a 12V automotive-style outlet. The optional, sold-separately parallel kit enables this inverter to connect with another Parallel Ready Champion Inverter or Power Station for more power and longer run time Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts