Compare the plug shapes, voltage and frequency in Malawi and Vanuatu, and find out which adapter you need before you travel.
Adapter required
Yes — coming from Malawi, you will need a travel adapter for Vanuatu. Malawi uses Type G plugs, and Vanuatu uses Type I, so the pin shapes will not fit any wall socket.
Malawi (home)
Vanuatu (destination)
Electrical specifications in Vanuatu
Voltage
Frequency
More about plugs in Vanuatu
In Vanuatu, the standard power plug is Type I. The country runs on 230 volts at 50 Hz. That means every wall socket in Vanuatu is the same shape — Type I, and your plug needs to physically match the socket to fit.
Full Vanuatu plug guide