In most night vision hidden cameras, the camera lens is not visible while the night vision feature is active. This is because the infrared LEDs that enable night vision emit light in a spectrum that is invisible to the human eye. However, some lower-quality night vision cameras may have a visible red glow from the LED lights, which can give away the camera’s location.
If discretion is a concern, it is important to choose a high-quality night vision hidden camera that is designed to be discreet and minimize the visible light from the LED lights. It is also recommended to test the camera in the dark before installation to ensure that the camera lens is not visible and the night vision feature is working properly.