The WG-50 has a high-power diode illuminator so it allows for 350 meter observation. 3 levels of Illumination illuminator allow you to adjust the power to a distance from the object. In low-light conditions, infrared can be turned off and
Infrared light is not visible to humans and animals (specifically mammals). For CCTV camera type devices, analog night vision or digital photo traps apply two types of infrared diodes (also laser)-about 850 nm and about 940 nm wavelength.