I’ve had a query about 12V near-infrared LED strip, especially 850nm LED strip.
You can see 850nm, but only just! 850nm is at the very edge of the eye’s ability to see. If you turn on the 850nm LED strip in a dark room, you will see a nice pale red glow. It’s red, but to our eyes it seems pretty dim. That’s good, that means it is working.
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Red lights on the brain 