Infraredlight vs Infrared - What's the difference?

infraredlight | infrared |

As a noun infrared is

electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm.

As an adjective infrared is

having the wavelength in the infrared.

Redlight vs Infraredlight - What's the difference?

redlight | infraredlight |