shaft of light vs beam of light

shaft of light and beam of light both are nouns.

Word	Noun	Adjective	Verb	Adverb
shaft of light	Yes	No	No	No
beam of light	Yes	No	No	No

As nouns, shaft of light and beam of light are synonyms defined as:

Other synonyms of shaft of light include beam, irradiation, light beam, ray, ray of light, shaft.

shaft of light (noun)	beam of light (noun)
a column of light (as from a beacon)	a column of light (as from a beacon)