This is one of those things I can't believe hasn't been standardized. Why???
As for the question, the one I grew up with type B. All others seems weird to me.
this post was submitted on 29 Jul 2025
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A useful source:
https://worldofsockets.com/
Its India ๐ฎ๐ณ Because its easy to use.
Type-M, as I live there. Very convenient, all pins round shaped
If you're a fellow South African, check out the South African sub
not type B, the tolerances aren't tight enough, and sometimes even if you have the wide/narrow pins the right way, it'll still refuse to go in
The UK plug is over engineered and looks like something from a steampunk universe, but I think itโs the best plug overall.
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Clearly type K. It's such a happy lil guy
I couldn't plug in an adaptor in what seemed to be the correct way, in a Sri Lankan hotel (type M), but it went in ok when I rotated it. As soon as it went in, the power went out in the entire hotel. It was out for the rest of the night, and as I went up the street the next morning, there was a crew working on a transformer a few blocks away. Coincidence?
Also, at the place I was working, there were 2 other types of power plug than type M. WTF?
B is mounted upside down. Also the prongs get bent easily. So definitely not B.