South America is mostly 220–230 V at 50 Hz, but plug shapes vary. Argentina, Uruguay and Chile use Type I (the Australian/NZ style); Brazil runs the Type N standard at dual 127/220 V depending on the city; Bolivia, Peru and Colombia use a mix of Type A, B and C; Guyana and Suriname are 110–220 V outliers shared with the Caribbean. Travellers from a 110–120 V country (USA, Canada, much of Central America) need to watch voltage compatibility on heating appliances; modern phone and laptop chargers usually handle the swing automatically. A universal adapter covers most cases.
