The table below summarises the plug types, voltage and frequency of electrical current in both Tonga and Liechtenstein.
| Tonga | Liechtenstein | |
|---|---|---|
| Plug Types | I | J |
| Voltage | 240V | 230V |
| Frequency of electrical current | 50Hz | 50Hz |
Tonga uses Plug Type I.
You will need this adaptor:
Socket Type
(Tonga) to Plug Type J
(Liechtenstein)
The voltages found in Tonga (240V) and Liechtenstein (230V) are not exactly the same, but the difference is tolerable, so you should not need a transformer.
The frequency found in Tonga and Liechtenstein is exactly the same (50Hz). Timing devices and appliances that use motors will function as expected under this frequency.