candlepower vs intensity

candlepower and intensity both are nouns.

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

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

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

Other hypernyms of candlepower include intensity level, strength.

candlepower (noun)	intensity (noun)
luminous intensity measured in candelas	high level or degree; the property of being intense
	chromatic purity: freedom from dilution with white and hence vivid in hue
	the magnitude of sound (usually in a specified direction)
	the amount of energy transmitted (as by acoustic or electromagnetic radiation)