Compare the plug shapes, voltage and frequency in Brunei and Eswatini, and find out which adapter you need before you travel.
Adapter required
Yes — coming from Brunei, you will need a travel adapter for Eswatini. Brunei uses Type G plugs, and Eswatini uses Type C/Type M/Type N, so the pin shapes will not fit any wall socket.
Brunei (home)
Eswatini (destination)
Electrical specifications in Eswatini
Voltage
Frequency
More about plugs in Eswatini
In Eswatini, the standard power plug is Type C and Type M and Type N. The country runs on 230 volts at 50 Hz. That means wall sockets in Eswatini can be one of 3 different shapes — Type C, Type M, Type N, and your plug needs to physically match the socket to fit.
Full Eswatini plug guide