You Do Need power plug adapter while traveling from Guam to Saint Lucia.

Here is Why You Need An Adapter

The outlet and plug type used in Saint Lucia is G and in Guam are A and B. This is how they look like.


Guam

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

Type A
Type B

Saint Lucia

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

Type G

Plug and Socket Compatibility Checker

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