Travel adapter from Jamaica to Marshall Islands
No Adapter Needed
You will not need a plug adapter — Jamaica and Marshall Islands share at least one common plug shape (Type A, Type B). The mains frequency is also different (50 Hz vs 60 Hz). This rarely matters for electronics but can affect motor-driven devices like clocks and shavers.
Jamaica (home)
✓
Type A
Two flat parallel pins
✓
Type B
Two flat pins + round ground
Marshall Islands (destination)
Electrical specs
Jamaica
110 V
50 Hz
= Match
Marshall Islands
120 V
60 Hz
〜 Frequency differs (50 Hz vs 60 Hz). Rarely an issue for most electronics, but can affect motor-driven devices like clocks and shavers.
More about plugs in Marshall Islands
In Marshall Islands, the standard power plug is Type A and Type B. The country runs on 120 volts at 60 Hz. That means wall sockets in Marshall Islands can be one of 2 different shapes — Type A, Type B, and your plug needs to physically match the socket to fit.