Question

1. the word luminaire refers to

a. the light source only
b. a complete lighting unit
c. the lampholder
d. parts to position the

Explanation:

In lighting - related terminology, a luminaire is defined as a complete lighting unit that includes the light source, its housing, optical components, and electrical - connection parts. It is not just the light source (a) or just the lampholder (c), and not just the parts to position something (d).

Answer:

b. a complete lighting unit