Power Plug Guide Will your devices work abroad?

Travel adapter from Dominican Republic to Tonga

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Adapter Required

Yes — coming from Dominican Republic, you will need a travel adapter for Tonga. Dominican Republic uses Type A/Type B plugs, and Tonga uses Type I, so the pin shapes will not fit any wall socket. Voltages differ (120 V at home vs 240 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. The mains frequency is also different (60 Hz vs 50 Hz). This rarely matters for electronics but can affect motor-driven devices like clocks and shavers.

Dominican Republic (home)

Type A
Two flat parallel pins
Type B
Two flat pins + round ground

Tonga (destination)

Type I
Two or three flat angled pins
About Type I ↗

Electrical specs

Dominican Republic
120 V
60 Hz
⚡ Differs
Tonga
240 V
50 Hz
⚡ Voltage converter may be needed. Check your device label — most modern electronics (phones, laptops) support 100–240 V and only need a plug adapter. Hair dryers, kettles, and older appliances may need a step-up or step-down converter.
〜 Frequency differs (60 Hz vs 50 Hz). Rarely an issue for most electronics, but can affect motor-driven devices like clocks and shavers.

More about plugs in Tonga

In Tonga, the standard power plug is Type I. The country runs on 240 volts at 50 Hz. That means every wall socket in Tonga is the same shape — Type I, and your plug needs to physically match the socket to fit.

Full Tonga plug guide →