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3 or 2 / plug

3 or 2
3 or 2

The “3 or 2 Plug” is an adjustable plug which you can choose to use the earth wire or not.
When bought a plug, it can’t be changed, which means you have to buy another adaptor for the different situation. In some situation like a conference, it can be really annoying.
The “3 or 2 Plug” is designed to solve this problem, by simply plugged it in the socket, the earth wire will goes into the plug if there’s no third hole on the socket.

University

National Cheng Kung University

National Cheng Kung University
Tainan, Taiwan

Design

National Cheng Kung University

National Cheng Kung University
Tainan, Taiwan

Che-Yu Lu