Traditional Culture Encyclopedia - Tourist attractions - What kind of conversion plug is needed for traveling in Japan and South Korea? It is best to have a link. Do I need a transformer? Thanks!

What kind of conversion plug is needed for traveling in Japan and South Korea? It is best to have a link. Do I need a transformer? Thanks!

I know that there are two specifications of plugs in South Korea

1. Conversion plug: Features two cylindrical heads. Plug form standard: two circles 4.8mm

2. Conversion plug: characterized by two cylindrical plugs.

Plug form standard: two circles 4.0mm

Applicable areas: South Korea and other places