You Do Need power plug adapter while traveling from El Salvador to Gaza Strip.

Here is Why You Need An Adapter

The outlet and plug type used in Gaza Strip are C and H and in El Salvador are A and B. This is how they look like.

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

Type A

Type B

In Gaza Strip, outlets of type C and H are in use.

Type C

Type H

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going to