Useful Life (of a lamp): Difference between revisions
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The length of time during which the luminous flux emitted by the lamp exceeds a specified proportion of its initial value. | The length of time during which the luminous flux emitted by the lamp exceeds a specified proportion of its initial value. | ||
Latest revision as of 10:11, 17 September 2026
The length of time during which the luminous flux emitted by the lamp exceeds a specified proportion of its initial value.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
