life to X % failures, <of an electric lamp>

length of time during which X % of the electric lamps subjected to a life test reach the end of their lives, the electric lamps being operated under specified conditions and the end of life judged according to specified criteria

Note 1 to entry: This entry was numbered 845-07-63 in IEC 60050-845:1987.

Note 2 to entry: This entry was numbered 17-658 in CIE S 017:2011.

Publication date: 2020-12
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