You Do Need power plug adapter while traveling from Vatican City to Senegal.

Here is Why You Need An Adapter

The outlet and plug type used in Senegal are C, D, E and K and in Vatican City are C, F and L. This is how they look like.

Vatican City

In Vatican City, outlets of type C, F and L are in use.

Type C

Type F

Type L

Senegal

In Senegal, outlets of type C, D, E and K are in use.

Type C

Type D

Type E

Type K