ultraviolet light vs ultraviolet radiation

ultraviolet light and ultraviolet radiation both are nouns.

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

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

ultraviolet light and ultraviolet radiation: radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays

Other synonyms of ultraviolet light include ultraviolet, ultraviolet illumination, UV.

ultraviolet light (noun)	ultraviolet radiation (noun)
radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays	radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays