You Do Need power plug adapter while traveling from Gibraltar to Laos.

Here is Why You Need An Adapter

The outlet and plug type used in Laos are A, B, C, E and F and in Gibraltar is G. This is how they look like.

Gibraltar

In Gibraltar, outlets of type G are in use.

Type G

Laos

In Laos, outlets of type A, B, C, E and F are in use.

Type A

Type B

Type C

Type E

Type F