outlet voltage in Japan
Outlet voltage in Japan is 100V. And its frequency is different east side and west side, east side uses 50Hz, and west side uses 60Hz. In Japan, US iphone adaptor can be used as is, since its input voltage is from 100v to 240v, and frequency is 50Hz/60Hz without any plug convertors. Please check the adaptor specification. plug type Voltage Frequency Japan A 100V 50Hz/60Hz US Canada Mexico A/B 120V 60Hz Europe South America Asian countries C 220-240V 50Hz India D 220-240V 50Hz France Belgium Poland Slovakia Czechia E 220-240V 50Hz Europe (except UK & Ireland) Russia F 220-240V 50Hz If you travel to Japan and bring your own electric gears, you may need a voltage converter. You also need to check its maximum wattage, the electric gear use and the converter covers. If you purchase electric gears in Japan and plan to bring back to your country, you also need vo