Nigrescence Time (of a lamp): Difference between revisions
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The time elapsing between the cessation of the supply of power to the lamp and the decrease of luminous intensity or luminous flux of the lamp to a specified percentage of the nominal value at the given power level. | The time elapsing between the cessation of the supply of power to the lamp and the decrease of luminous intensity or luminous flux of the lamp to a specified percentage of the nominal value at the given power level. | ||
Latest revision as of 09:22, 17 September 2026
The time elapsing between the cessation of the supply of power to the lamp and the decrease of luminous intensity or luminous flux of the lamp to a specified percentage of the nominal value at the given power level.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
