How to make my american xbox 360 work in europe?

I am going to europe with my ntsc xbox 360 and i know the voltage is diff there.Now is there a way to make my xbox work in europe,what do i need to buy and such.thanks!

Answer: 
In order to run a different voltage machine, you need to buy a power transformer which changes the voltage for your power socket. It has nothing to do with NTSC or not, but voltage differences ( step up or down ).