The Briggs & Stratton P4500 generator is a great choice for anyone looking for an inverter-style generator. This unit provides 4500 peak/3700 rated watts of power and can run for up to 16 hours on a full tank of gasoline. It also features four 120V 20A outlets, one 120V 30A RV outlet, and two USB ports. The P4500 is easy to start, thanks to its electric start and recoil backup. It also comes with a three-year limited warranty (consumer) and one-year limited warranty (commercial).