230 V
50 Hz
In Saint Helena, Ascension and Tristan da Cunha, they use power outlets and plugs of type G. The voltage is 230 V, and the frequency is 50 Hz.
You will need an adapter for type G power outlets in Saint Helena, Ascension and Tristan da Cunha You will need a voltage converter as well.
Be cautious with some devices due to the frequency difference.In Saint Helena, Ascension and Tristan da Cunha, type G power outlets are used, while in USA, you use plugs A and B. If you're traveling to Saint Helena, Ascension and Tristan da Cunha, you'll need a power adapter for types G, as your power plugs won't fit the sockets there.
Your plugs A and B do not match outlet type G.
Since you'll need a travel adapter for Saint Helena, Ascension and Tristan da Cunha when coming from USA, we suggest opting for a universal power adapter that works in many countries and will also prepare you for future trips.
Make sure to get a power adapter for outlets of type G. If you often go abroad, consider getting an all-in-one adapter (most adapters even have additional charging ports for USB-A and USB-C). Since you also need an international power (voltage) converter to keep your devices protected (more info further down), getting a combo power adapter/converter might be the best solution.
Saint Helena, Ascension and Tristan da Cunha operates on 230 V with a frequency of 50 Hz, while USA uses 120 V with a frequency of 60 Hz. You need a voltage converter for devices from USA because they are typically designed for 120 V, and using them with Saint Helena, Ascension and Tristan da Cunha's 230 V system without a converter could damage your device. Additionally, the difference in frequency may affect the performance of some devices.
120 V
60 Hz230 V50 HzA voltage converter is necessary to safeguard your devices in Saint Helena, Ascension and Tristan da Cunha.Look for a voltage converter that can adjust the frequency as well.A voltage converter keeps your electrical devices from Saint Helena, Ascension and Tristan da Cunha running properly by adjusting the power to the right voltage. Without it, your devices could overheat or get damaged from the wrong power supply. Since you need a travel adapter as well, a combo power (voltage) converter with adapter features might be a good choice.
Please note: If your voltage converter can't switch the frequency, it’s safer not to use your electronics. Proceeding without caution could lead to issues, especially with devices that rely on precise timing or motors, like hair dryers, electric razors, kitchen appliances, and health-related equipment such as blood pressure monitors. These kinds of electronics are more vulnerable to damage or malfunction when the frequency is off. If you choose to use them anyway, be extremely cautious and always check the specifications first.
To confirm, check if your devices require a voltage converter by looking at the 'INPUT' label, typically found on the power adapter or charger. If the label shows "INPUT: 100-240V, 50/60 Hz," the device is built to handle different voltage and frequency ranges, meaning you’ll only need a plug adapter for the outlets in Saint Helena, Ascension and Tristan da Cunha. This is typical for devices such as notebooks, smartphones, digital cameras, and also for tablets, e-readers, and some battery chargers.
No, you will need a voltage converter. Saint Helena, Ascension and Tristan da Cunha operates on 230 V, much higher than USA's 120 V, and the difference in frequency (50 Hz in Saint Helena, Ascension and Tristan da Cunha) could also affect the motor of your hair dryer. Without a converter, using the hair dryer could result in damage or malfunction.
Yes, most modern laptops and smartphones support a wide voltage range (100-240V), so you can use them in Saint Helena, Ascension and Tristan da Cunha without a voltage converter.
No, you will need a voltage converter to safely use your American curling or flat iron in Saint Helena, Ascension and Tristan da Cunha. The higher voltage (230 V vs. 120 V) can damage the device, and the different frequency (50 Hz in Saint Helena, Ascension and Tristan da Cunha) may cause uneven heating or affect performance. A voltage converter is required.
Yes, when traveling from USA, you will need a power adapter for type G power outlets in Saint Helena, Ascension and Tristan da Cunha.
Yes, you will need a voltage converter for devices that only support 120 V, as Saint Helena, Ascension and Tristan da Cunha operates on 230 V. Devices like laptops and smartphones that support 100-240V won’t require a converter but will need a plug adapter. The frequency difference (50 Hz vs. 60 Hz) generally won’t affect modern electronics but may impact older or motorized devices.
See if your power plugs from USA fit into the sockets of other destinations and whether you need a voltage converter.
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