Mains supply in Trinidad and Tobago: 115 V, 60 Hz, sockets of Types A and B. 115 V instead of 230 V: check the rating plate before you plug in a hair dryer. An adapter does not change voltage. The grid runs at 60 Hz. Chargers do not care; mains-synchronised clocks and simple motors do.
Handy for multi-stop trips: Antigua and Barbuda, Honduras, the Bahamas and Belize use the same plug types. Nearby but different: Guadeloupe, Dominica and Grenada – an adapter for Trinidad and Tobago will not fit there. 24 of the 31 destinations in North and Central America share the plug types of Trinidad and Tobago.
Protective earth
Grounded and ungrounded sockets may occur
Earthed sockets (Type B) and unearthed ones (Type A) exist side by side. For metal-bodied appliances the protective-earth path is what matters.
Check the rating plate: 115 V suits “100–240 V” supplies, not single-voltage appliances. The 60 Hz supply matters for motors and mains clocks, not for chargers. Check your own device →
Types A and B – that is what you will find in Trinidad and Tobago (115 V, 60 Hz).
What voltage does Trinidad and Tobago use?
At 115 V it depends on the rating plate: “100–240 V” is fine, single-voltage gear is not.
An adapter changes the plug shape only, not voltage or frequency. Trinidad and Tobago supplies 115 V at 60 Hz – check the rating plate on your device. How to read a rating plate →
If a socket gets hot, crackles or smells burnt, unplug the device straight away.