LDD
Definition: Luminaire Dirt Depreciation Factor
Related Links
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Luminaire Dirt Depreciation – STANDARD
Light Guide: Light Loss Factors
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Light Output Declines with Time – Madison Gas and Electric – Madison, Wisconsin
Designing Lighting Systems for Use in a Dirty Environment | Electrical Construction & Maintenance (EC&M) Magazine
luminaire dirt depreciation – FMPedia Wiki – FMGlossary – IFMA Community
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