Seychelles.

240 V · 50 Hz on Type G.

Type GBritish 13 A plug13 A · earthed

The Seychelles keeps to British wiring: Type G sockets throughout on a 240 V, 50 Hz supply, at the top of the 230 V family. UK plugs work without adapters; continental Europeans need a shape adapter, and any 120 V-only appliance needs dual-voltage support or a converter.

The voltage window

A nominal 240 V supply may legitimately sit anywhere between 216 and 264 V (±10%). Dual-voltage gear (marked 100–240 V) shrugs at all of it.

Grid facts verified against IEC World Plugs — Seychelles. Prose is our own.

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Pack an adapter — Seychelles runs 240 V 50 Hz on Type G — and your 120 V appliances need to be dual-voltage or transformed, adapter or not.

Type A needs an adapter
Seychelles's Type G sockets don't take a Type A plug.
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Type B needs an adapter
Seychelles's Type G sockets don't take a Type B plug.
the full story

Faces drawn to scale from pin dimensions · verdicts are physical fit + voltage math, not safety advice — when in doubt, ask the hardware store, not the internet.