Montezuma, Moctezuma, Moteczoma, Motecuhzoma, Moteuczomah, and Mwatazuma are variant spellings of the same word and may refer to:
Voltage, Frequency and Plug/Outlet Type in United States of America / USA. Electricity in United States of America / USA is 120 Volts, alternating at 60 cycles per second. If you travel to United States of America / USA with a device that does not accept 120 Volts at 60 Hertz, you will need a voltage converter.
Note: Over the last 100 years or so the 60 Hz national standard voltage has crept up from 100 volts to 110 volts to 115 volts to 120 volts. (The various US states and different countries each brought in those increases at different times.) For more information please see the answer to the Related Question shown below.