Sri Lanka uses a different plug shape (Type D/G/M) and runs on 230V — you'll need a plug adapter, and possibly a voltage converter for single-voltage devices.
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| Plug types | D, G, M |
| Voltage | 230V |
| Frequency | 50Hz |
| US standard | Type A/B, 120V, 60Hz |
Type D (three round pins in a large triangle (older Indian style)), Type G (three rectangular pins (UK/Ireland/Singapore/Hong Kong style)), Type M (three large round pins (South African style)).
Sri Lanka uses Type D (three round pins in a large triangle (older Indian style)), Type G (three rectangular pins (UK/Ireland/Singapore/Hong Kong style)), Type M (three large round pins (South African style)).
Yes — Sri Lanka's outlets use a different shape than US plugs, so you'll need a plug adapter.
Sri Lanka runs on 230V at 50Hz, notably different from the US standard of 120V — check that your device is rated for this voltage before plugging in directly.
Most modern electronics (phone and laptop chargers) are dual-voltage (100-240V) and only need a plug adapter, not a converter. Single-voltage, high-wattage devices like hair dryers or straighteners may need an actual voltage converter — check the label near the plug prongs for the input voltage range.