Can ifind a use for these?

20m, 3cm spacing


i suppose i can start on a led curtain, but im going to need some more!

usb meter says otherwise

Outline a giant Santa, etc.

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ive visually checked the brightness of the first and last leds
to my eye i cant tell any difference

make a INFO Display for your Bathroom if cand dind anything usefull like Garage Light
or if you are in the USA CAR light on USB plug