NOTE: This definition was changed in RP-16-17 Addendum 4. Deletions have a strike-through. New text is bold.

A complete lighting unit consisting of a lamp(s) light source(s) and ballast(s) or driver(s) (when applicable), together with the parts designed to distribute the light, to position and protect the lamp(s) light source(s), and to connect the lamp(s) light source(s) to the power supply. Also known as a light fixture.

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