I'm traveling to Italy and Greece in a few weeks, and I am trying to figure out if I need a voltage CONVERTER or just an adapter for the plugs. My Remington Wet2Straight flat iron says it is dual voltage, but it doesn't say anything more specific. My travel hair dryer is dual voltage, but it is 150/250. Isn't the standard lower than 250? But it wouldn't really make sense for a company to make a travel product that wouldn't work at that voltage.

So my questions:

1. "Dual voltage" means, in theory, that I do NOT need a converter. Is that correct? It seems like a dumb question, but I just want to make absolutely sure!

2. Is 250 too high for travel to Europe or will it not make that big of a difference?

Any real input would be great, except from people who write things like "I don't know" just to get more points. Please don't do that.