[Farmerbob]

I think in low light conditions they emit a red light to be able to “see”. That’s one reason it’s so easy to steal game cameras. Some one just walks the woods at night and looks for the glow. My security cameras glow red at night; like a stove eye.

[palmer]

You can get cameras with red glow and cameras with "no glow": https://www.trailcampro.com/pages/red-glow-vs-no-glow-infrared-flash-which-is-better Countermeasure to get some night vision equipment that can pick up the "no glow" sources, e.g. https://us.nightfoxstore.com/products/nightfox-prowl-night-vision-monocular

[Myrddin]

I think in low light conditions they emit a red light to be able to “see”.

My Ring cameras have IR emitters to see in the dark. I can switch the light on if I want color. The IR emitters do give off some visible red light. It is actually a panel of LEDs for the IR emitters.

[riverrunner]

So much so that bears love to crunch them.

Over the years I have gotten pictures of a bears open mouth.

Just before he had bitten into them.

[Mean Daddy]

When we stay at a hotel or AirBnB, at night with the lights off, use your phone camera and scan the room. If there’s a camera, your phone will pick up a red light.

[minnesota_bound]

My wyze camera lets you turn off the light. It also sees in the dark in color.