Compare the plug shapes, voltage and frequency in Marshall Islands and Vatican City, and find out which adapter you need before you travel.
Adapter required
Yes — coming from Marshall Islands, you will need a travel adapter for Vatican City. Marshall Islands uses Type A/Type B plugs, and Vatican City uses Type C/Type F/Type L, so the pin shapes will not fit any wall socket. Voltages differ (120 V at home vs 230 V abroad), so check the label on each device. Most modern dual-voltage chargers handle the swing without a converter, but heating appliances usually do not. The mains frequency is also different (60 Hz vs 50 Hz). This rarely matters for electronics but can affect motor-driven devices like clocks and shavers.
Marshall Islands (home)
Vatican City (destination)
Electrical specifications in Vatican City
More about plugs in Vatican City
In Vatican City, the standard power plug is Type C and Type F and Type L. The country runs on 230 volts at 50 Hz. That means wall sockets in Vatican City can be one of 3 different shapes — Type C, Type F, Type L, and your plug needs to physically match the socket to fit.
Full Vatican City plug guide