I am so confused! I ordered an adapter for my trip to Prague from the USA so I can plug in my hairdryer and straightening iron but would also like to charge up my iPod while I am there. Do I need more than an adapter? The blowdryer is 1800 watts, the straightening iron is 180 watts and the charger is 0.5 watts. How do I know or where can I research if I need more than an adapter. These are all TWO pronged items. Any ideas? Thank you.