I was hoping this might be usable as a mini ring light.

I saw this COB based led keychain light and wondered if it had a donut shaped COB that could be used as a ring light for a miniature camera.   The answer is yes and no.  It COULD be adapted with a bit of effort, but is not totally suited to the application.  The modification would require removing the button and drilling a hole in its place, then bypassing the control circuitry.

It's a neat enough little light.  I've seen the clever spring loaded clasp mechanism before.  It's very simple and makes me wonder who came up with the original concept of differing leg lengths to give an inherent self-closing effect.


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