Electrical outlets and electricity in Japan 電気
Electricity in Japan: be aware
Plugs, voltages, adapters: all you need to purchase and use electrical and electronic equipment in Japan.
Japan is connected to a current of 100 volts (220 in France) and uses two frequencies. A frequency of 50 Hz is generally in use in the east (Tokyo, Kawasaki, Sapporo, Yokohama, Sendai) while the west of Japan uses a frequency of 60 Hz (Osaka, Kyoto, Nagoya, Hiroshima).
Modern electronic devices (computers, cameras, phones, tablets) work normally without problems, but remember to check their voltage: the transformer should indicate "INPUT 100-240 V ~ 50/60 Hz", which means that it is operating on a current. between 100 and 240 volts, and 50 to 60 Hertz.
Electrical outlets in Japan are type A, with two flat plugs (as in the United States), so you will need a Europe / Japan power adapter to use them. They are easily found in Japan, in international airports like Narita, Bic Camera or Yamada Denki shops, the stalls of Akihabara, or the 100 yen shops (all at 1 €), for a low price (300-500 yen / 3- 5 €). Also remember to ask at the reception of your hotel, many make it available to their customers.
Tip : pack a French multi-socket in your suitcases, and a single adapter will be enough to charge all your devices.
To buy electrical or electronic equipment in Japan, the logic remains the same: check that the transformer specifies in "INPUT" a voltage in accordance with that used in France (220 volts). If not, you will need to purchase a voltage converter.