inputs.text: pure sine wave - well built sine wave invertor low current draw idle purchased power 58 watt draw 110 vac toshiba tvdvd combo rv boondocking harvest host wineries national park systehem campgrounds testing performed well protected tried 250w lamp replace cig plug hardwire second larger modified sine wave inverter 15002000w used short durations make morning coffee run microwave without running generator used samlex products many years far good