I have been using the AIMS 600WATT PSW Inverter PWRI60012S (AMAZON $159) for several years now.
More power than I need but it works great. I feed an extension cord with multihead receptacle from the Inverter to the Home entertainment area and another one to the Bedroom area where most of my daily use items are located...
Being PSW I don't ever have to worry about what is plugged into it and going up in blue smoke...
Roy Ken