You Do Need power plug adapter while traveling from Bosnia & Herzegovina to San Marino.

Here is Why You Need An Adapter

The outlet and plug type used in San Marino are C, F and L and in Bosnia & Herzegovina are C and F. This is how they look like.

Bosnia & Herzegovina

In Bosnia & Herzegovina, outlets of type C and F are in use.

Type C

Type F

San Marino

In San Marino, outlets of type C, F and L are in use.

Type C

Type F

Type L