ultraviolet illumination vs ultraviolet light

ultraviolet illumination and ultraviolet light both are nouns.

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

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

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

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

ultraviolet illumination (noun)	ultraviolet light (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