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.
I understand that the voltage in Tokyo is 100V. I am wondering if I can use any of my electrical goods that I have in the US (all in 110V) in Japan. You might want to be more cautious about that. Tokyo's voltage is at 100 BUT their frequency works at 50 Hz).