[jagasail]

I don't know the 'correct' answer either, except that I've used several inverters over the years, usually cheap 150 or 300 watt ones bought at Walmart or Radio Shack meant for cars, and never had any trouble with them. However, the cheap ones (all modified sine wave) could put out more RF, impacting your radio reception. Now I'm using a Kennsington supply with both 120v and 12v input plus an adapter plug to power my MacBook. Not the cheapest solution but works well and avoids the inverter all together.

Scot