What kind of power connection type you use in Brazil?
 
The voltage here in Sao Paulo is mostly 110 V. 

As far as plugs, there are two kinds in use in the country -- the Brazilian one, similar to the European standard, but with 2 thinner pins, and the American 2-pin one. The American standard is not found in every wall outlet, but adaptors for it are easy to find. Adaptors for other standards can be hard to find. We recommend you bring your own.

Image source:
http://upload.wikimedia.org/wikipedia/commons/8/8b/Brazilian_plug_types.jpg
Electrical power
Thursday, June 29, 2006