infrared light vs infrared radiation

infrared light and infrared radiation both are nouns.

Word	Noun	Adjective	Verb	Adverb
infrared light	Yes	No	No	No
infrared radiation	Yes	No	No	No

As nouns, infrared light and infrared radiation are synonyms defined as:

infrared light and infrared radiation: electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves

Other synonyms of infrared light include infrared, infrared emission.

infrared light (noun)	infrared radiation (noun)
electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves	electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves