You Do Need power plug adapter while traveling from Hungary to Canary Islands.

Here is Why You Need An Adapter

The outlet and plug type used in Canary Islands are C, E and F and in Hungary are C and F. This is how they look like.

Hungary

In Hungary, outlets of type C and F are in use.

Type C

Type F

Canary Islands

In Canary Islands, outlets of type C, E and F are in use.

Type C

Type E

Type F