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Lighting Glossary
Term:
Lamp Lumen Maintenance Factor
The Lamp Lumen Maintenance Factor (LLMF) describes the normal reduction of the luminous flux during lamp life. E.g.: factor 0.96 after 2,000 hours: the light output of the lamp after 2,000 hours is 96% of the initial light output.
"m" = operation with magnetic ballast / "e" = operation with electronic ballast.
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"m" = operation with magnetic ballast / "e" = operation with electronic ballast.
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