I was living in Turkey and now just moved to Germany this month. Both places use the same adapters that I posted a photo of earlier in this thread. I have been using them full time for a few years. Right now here on my desk I have my 24LED, 27iMac, 17 MBP all plugged into adapters running full time. Throughout the house we have 4 or 5 different iphone chargers running on the same adapters plugged in full time as well.. NO ISSUE at all.
These are just adapters and they do not convert power in any way what so ever they simply adapt different plug styles so the power simply flows through them. All of the voltage conversion is done inside of the Apple transformer that you use everyday to run your computer at home.