candlepower vs intensity level

candlepower and intensity level both are nouns.

Word	Noun	Adjective	Verb	Adverb
candlepower	Yes	No	No	No
intensity level	Yes	No	No	No

As nouns, intensity level is a hypernym of candlepower; that is, intensity level is a word with a broader meaning than candlepower:

candlepower: luminous intensity measured in candelas
intensity level: the amount of energy transmitted (as by acoustic or electromagnetic radiation)

Other hypernyms of candlepower include intensity, strength.

candlepower (noun)	intensity level (noun)
luminous intensity measured in candelas	the amount of energy transmitted (as by acoustic or electromagnetic radiation)