lamp housing vs lamphouse

lamp housing and lamphouse both are nouns.

Word	Noun	Adjective	Verb	Adverb
lamp housing	Yes	No	No	No
lamphouse	Yes	No	No	No

As nouns, lamp housing and lamphouse are synonyms defined as:

lamp housing and lamphouse: housing that holds a lamp (as in a movie projector)

Other synonyms of lamp housing include lamp house.

lamp housing (noun)	lamphouse (noun)
housing that holds a lamp (as in a movie projector)	housing that holds a lamp (as in a movie projector)