lightness vs visual property

lightness and visual property both are nouns.

Word	Noun	Adjective	Verb	Adverb
lightness	Yes	No	No	No
visual property	Yes	No	No	No

As nouns, visual property is a hypernym of lightness; that is, visual property is a word with a broader meaning than lightness:

lightness: the visual effect of illumination on objects or scenes as created in pictures
visual property: an attribute of vision

lightness (noun)	visual property (noun)
the trait of being lighthearted and frivolous	an attribute of vision
the visual effect of illumination on objects or scenes as created in pictures
the property of being comparatively small in weight
having a light color
the gracefulness of a person or animal that is quick and nimble
a feeling of joy and pride