The e-ILV provides free access to all the terms and definitions contained in the international standard CIE S 017:2020 ILV: International Lighting Vocabulary, 2nd edition.
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built-in lamp control gear
lamp control gear designed to be built into a luminaire, a box, an enclosure or the like and not intended to be mounted outside a luminaire
Note 1 to entry: The control gear compartment in the base of a road lighting column is considered to be an enclosure.