I agree with Paul. I have always stuck with pure sine wave inverters then I know things will work when I plug into the inverter. I would suggest looking at your power requirements closely as a tv for example would only draw a 100 watts or less. You may find a 800 watt inverter would be ample and would be a lot cheaper.
Cheers David.
2011 Southern Star 630 caravan, 300 w solar, 2x 100 Ahr LifePo4 batteries, 1700w inverter, 160 ltr of fresh and grey water tanks, electric drum brakes. Tow tug: 1997 Isuzui Bighorn 3.1 diesel 5 speed Manual with AL-KO iQ7 Xtreme brake controller.