This is really useful! Thanks for posting the size comparison. I may have to give the H150 a try assuming that they've resolved the short circuit issue.
I noticed this usability issue of lemmy as well. The photo is the one you can set as the URL for the post and a thumbnail of it should be shown at the top. Here's an embedded version of it:
Thanks. IIRC the Zebralight H50 is a cm or so shorter than any of those. I'll try to post a pic sometime. How do you like the Manker E02? I got one recently and find I wish it were smaller and that the UI was either greatly simplified, or replaced by Anduril.