Someone donated, at rough estimate, 2 million LEDs to my local hackspace. It was something like 30 boxes full of 5000-count reels of white 3014 LEDs.
Just as a quick test, I did a panel for them. Ten rows of 3 in series.
I forgot to get a picture of them all lit up, but I think I ruined my eyes
Time for a lamp maybe?
These only took 5 minutes or so to build up, with a solder paste syringe and a reflow oven.
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Looks like a good candidate to make an ESP-MESH Lamp:
https://hackaday.io/project/163672-esp32-meshkit-unexpensive-rgb-led-lamps :)
This ones are RGB but you can of course use only the white channel .
Are you sure? yes | no