Travel adapter from Vietnam to Sri Lanka
Adapter Required
Yes — coming from Vietnam, you will need a travel adapter for Sri Lanka. Vietnam uses Type A/Type B/Type C plugs, and Sri Lanka uses Type G, so the pin shapes will not fit any wall socket.
Vietnam (home)
Type A
Two flat parallel pins
Type B
Two flat pins + round ground
Type C
Two round pins (Europlug)
Sri Lanka (destination)
Electrical specs
Vietnam
230 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.