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

Here is Why You Need An Adapter

The outlet and plug type used in Brunei 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

Brunei

In Brunei, outlets of type G are in use.

Type G

Plug and Socket Compatibility Checker

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