Clearly produced for an international market!

These are the adapters for the power cord for my foldio photo box. The US adapter is the one at right with two vertical slats. So what areas of the world have the others:
» two square contacts with a third, non-conducting slat (left)?
» two angled slats (middle-top)?
» two round pins (middle-bottom)?
The coloring is odd because I shot these in the photo box, but I obviously didn't have the light plugged in … because the adapter for the power supply is in the photo! (I did use the OttLite to add additional, direct light to that from the overhead LED fixture in the garage.)

January, 2024 edit
Answers (from the box)
» two square contacts with a third, non-conducting slat (left)? UK
» two angled slats (middle-top)? Australia
» two round pins (middle-bottom)? European Union

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[Mags]

Very interesting composition! Do you expect to get overseas with your photo box?

[Thom Mitchell]

@marlboromaam Oh, gosh, no! But when I had problems with the product when it was new, https://365project.org/rhoing/365/2015-09-03 the company replaced the battery-powered light strip with a strip that connects to a wall outlet … with four [international] adapters. The replacement came *from* Korea — I *think* — and it came on the first or second day after I contacted them.
» Orangemonkie: https://orangemonkie.com/

[Mags]

@rhoing I have a light board for slides and negatives. Haven't used it in years. It just takes a light bulb and an outlet to plug it in. LOL! You are more technical with these things than I am. =)

[GaryW]

I am not a world travel so have no idea. I do wonder why there is no universal standard for these.

[Esther Rosenberg]

I have a drawer of those adapters. I often forget them and needed to buy them again.

[Thom Mitchell]

@dutchothotmailcom I can see how that could happen! BTW, which of the three non-US adapters would you use for your travels (and where)?

[Corinne]

Adapters used to be a nightmare for me : now I buy the big fat ones I find in airport : suitable for any countries plugs !