More things about electricity...

I brought my hair dryer with me from New Zealand and I knew when I did that America had a different power system than NZ. But, I figured that if I had the appropriate plug converter thingee then the hair dryer should work fine, maybe just a little slower since NZ is on 250volts and the US is 110volts. However, it goes so slow I might as well blow on my hair. Conversely my hair straightener works fine, just a bit slower to heat up. Go figure.