Compare the plug shapes, voltage and frequency in Guatemala and South Sudan, and find out which adapter you need before you travel.
Adapter required
Yes — coming from Guatemala, you will need a travel adapter for South Sudan. Guatemala uses Type A/Type B plugs, and South Sudan uses Type C/Type D/Type G, so the pin shapes will not fit any wall socket. Voltages differ (120 V at home vs 230 V abroad), so check the label on each device. Most modern dual-voltage chargers handle the swing without a converter, but heating appliances usually do not. The mains frequency is also different (60 Hz vs 50 Hz). This rarely matters for electronics but can affect motor-driven devices like clocks and shavers.
Guatemala (home)
South Sudan (destination)
Electrical specifications in South Sudan
More about plugs in South Sudan
In South Sudan, the standard power plug is Type C and Type D and Type G. The country runs on 230 volts at 50 Hz. That means wall sockets in South Sudan can be one of 3 different shapes — Type C, Type D, Type G, and your plug needs to physically match the socket to fit.
Full South Sudan plug guide