reference lamp, <for testing ballasts>
electric lamp selected for testing ballasts which, when associated with a reference ballast, has electrical characteristics which are close to the rated values as stated in the relevant lamp standard
Note 1 to entry: This entry was numbered 845-07-55 in IEC 60050-845:1987.
Note 2 to entry: This entry was numbered 17-1051 in CIE S 017:2011.