Good point…
To clarify what I meant… most mass produced (AKA cheap) IR LEDS are in the Near-IR frequency range (850nm). They do have slight red glow, but not easily detected from a distance unless grouped in a bundle, particularly in total dark.
Having these on an otherwise hidden camera is not a desired trait but can somtimes be mitigated with a red filter… although degrading their effectiveness. However, these can possibly act as misdirection of the cameras true location when mounted as “external” light sources.
The quality (AKA expensive) IR LEDs are classified closer to the Mid-Far-IR range (940nm), and look basically off unless you are literally going eyeball to LED (not a good idea as they are still blasting your retina to some degree 
)