What Is an Infrared Flashlight?
An infrared flashlight is a handheld lighting device that utilizes infrared LEDs instead of traditional white LEDs.
This distinction makes the infrared flashlight particularly useful for nighttime activities. Infrared light has a longer wavelength than visible light, which typically falls within the human visual spectrum, making these flashlights ideal for use in the dark.
Different types of infrared flashlights are distinguished by their wavelengths, which affects their visibility. For example, an infrared flashlight with a wavelength of 850nm emits a faint red glow, while one with a wavelength of 940nm is generally invisible to the naked eye.