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semiconductor ballast, <of a discharge lamp>
unit comprising semiconductor devices and stabilizing elements for the operation under AC power of at least one discharge lamp and energized by a DC or an AC source
Note 1 to entry: This entry was numbered 845-08-35 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-1159 in CIE S 017:2011.