Compare the plug shapes, voltage and frequency in South Korea and Belize, and find out which adapter you need before you travel.
Adapter required
Yes — coming from South Korea, you will need a travel adapter for Belize. South Korea uses Type C/Type F plugs, and Belize uses Type A/Type B, so the pin shapes will not fit any wall socket. Voltages differ (230 V at home vs 110 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.
South Korea (home)
Belize (destination)
Electrical specifications in Belize
More about plugs in Belize
In Belize, the standard power plug is Type A and Type B. The country runs on 110 volts at 60 Hz. That means wall sockets in Belize can be one of 2 different shapes — Type A, Type B, and your plug needs to physically match the socket to fit.
Full Belize plug guide