Lighting Terms and Definitions – Wavelengths

When shopping around for your lighting options you’ll be bombarded by lighting terms on packaging and sales people. Understanding what these terms mean can make the difference between buying the right product and buying something that looks completely different than what you were going for. Over the next few blog posts we’ll be explaining some common terms.

Visible Light

Visible light is the actual light that the human eye can detect. We can detect electromagnetic radiation wavelengths that are long and short.  Typically the human eye can detect wavelengths between 400 nanometers (nm) and 750nm. The shorter the wave the more blue the light will appear and the longer the wave it will appear red in color.

Infrared (IR)

Infrared (IR) wavelengths can be anywhere from 1mm to 750nm. It can be detected as heat from a light bulb or even a fire. IR wavelengths of electromagnetic radiation are longer that what the human eye can see.

Ultraviolet (UV)

The length of UV wavelengths can rance from 100nm to 400nm. The human eye cannot see this type of light. Ultraviolet waves come from sunlight, fluorescent light, and some degree incandescent light. UV light can, over time, degrade the components of paper, photos, ink, paint and some adhesives.

Stay tuned for more lighting terms defined in our next blog posts!