Electrical Outlets in Cuba: Voltage, Plugs and Adapters

Quick answer: Bring a universal plug adapter, verify the voltage printed on every charger and do not connect single-voltage appliances until the outlet voltage is confirmed.

Cuba uses more than one electrical standard. Travellers may encounter 110-volt and 220-volt outlets, sometimes within the same hotel or resort. Plug shapes can also vary, so checking every device before departure is important.

For a resort-specific checklist, see the guide to power outlets at Cuba resorts before charging several devices.

Voltage at Cuba resorts

Many older properties use 110 volts, while newer or renovated hotels may also provide 220-volt outlets. Some rooms label the voltage beside the socket, but not all do. Never assume every outlet in the room is the same.

Common plug types

Travellers may find North American flat-pin outlets, European round-pin outlets or multi-standard sockets. A compact universal travel adapter is usually the simplest solution. A second adapter can help when several devices must charge at once.

Check whether a device is dual voltage

Look at the charger label for an input range such as 100–240V, 50/60Hz. Most modern phone, tablet and laptop chargers are dual voltage and need only a plug adapter. Hair dryers, straighteners, kettles and similar appliances may be single voltage and can be damaged if connected incorrectly.

Adapter versus converter

A plug adapter changes the shape of the plug. It does not change voltage. A voltage converter changes the electricity supplied to a device. High-power appliances can exceed the capacity of small converters, so using the resort appliance or leaving the device at home is often safer.

Preparing for power interruptions

Power interruptions can affect lighting, elevators, air conditioning, water pumps, WiFi and room outlets. Some resorts have generators, but backup coverage may be limited to essential systems.

Charge devices whenever electricity is available and carry a power bank in cabin baggage according to airline rules.

Safe charging practices

Use reputable chargers and cables.
Avoid loose, damaged, discoloured or overheating outlets.
Do not overload one socket with several high-power devices.
Disconnect sensitive electronics during repeated flickering or unstable supply.
Keep chargers away from sinks, wet counters and balconies.

Medical and essential devices

Travellers who depend on a CPAP machine, refrigerated medication or another powered medical device should contact the resort and airline before departure. Confirm room voltage, outlet access and backup arrangements.

Do not rely only on a general promise that the resort has a generator. Ask whether the specific room outlet, refrigerator or medical device remains powered during an interruption.

Read the Cuba CPAP and medical-device guide.