Travel adapter from Tonga to Sri Lanka
Adapter Required
Yes — coming from Tonga, you will need a travel adapter for Sri Lanka. Tonga uses Type I plugs, and Sri Lanka uses Type G, so the pin shapes will not fit any wall socket.
Tonga (home)
Type I
Two or three flat angled pins
Sri Lanka (destination)
Electrical specs
Tonga
240 V
50 Hz
= Match
Sri Lanka
230 V
50 Hz
More about plugs in Sri Lanka
In Sri Lanka, the standard power plug is Type G. The country runs on 230 volts at 50 Hz. That means every wall socket in Sri Lanka is the same shape — Type G, and your plug needs to physically match the socket to fit.