You Do Need power plug adapter while traveling from Cambodia to Syria.

Here is Why You Need An Adapter

The outlet and plug type used in Syria are C, E and L and in Cambodia are A, C and G. This is how they look like.

Cambodia

In Cambodia, outlets of type A, C and G are in use.

Type A

Type C

Type G

Syria

In Syria, outlets of type C, E and L are in use.

Type C

Type E

Type L