From Guam

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GuamVoltage 110V • Frequency 60Hz

Type A

Type B

Frequently asked questions

What plug type does Guam use?: Guam uses Type A, Type B sockets. The supply runs at 110V, 60Hz.
What voltage does Guam use?: Guam supplies 110V mains power. If you bring an appliance from a country with a different supply voltage, check its label for a 100 to 240V rating before plugging it in.
What is the electrical frequency in Guam?: Guam runs at 60Hz. Modern phone and laptop chargers handle any common frequency, but motors and clocks that depend on it may not.