You Do Need power plug adapter while traveling from Saint Helena to Costa Rica.

Here is Why You Need An Adapter

The outlet and plug type used in Costa Rica are A and B and in Saint Helena is G. This is how they look like.


Saint Helena

In Saint Helena, outlets of type G are in use.

Type G

Costa Rica

In Costa Rica, outlets of type A and B are in use.

Type A
Type B

Plug and Socket Compatibility Checker

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