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lamp depreciation

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lamp depreciation [′lamp di‚prē·shē‚ā·shən]
(electricity)
The decrease in amount of light emitted by a lamp during its operating life.

lamp depreciation
The decrease in luminous output of a lamp during its operating life.


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Halide also has lamp depreciation, "which means that even though it lasts several years, after about a year you only have about 60% or 70% efficiency.
 
 
 
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