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> > KeyLight

KeyLight

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KeyLight: Lighting Collection Vol.4 2023, 439 446

4 3 7
Lumen maintenance L90/B50 @ 50,000 hours
The quality of the LED SLM portfolio is backed by the claim of L90/B50 @ 50,000 hours. This means that at
50,000 hours of operation at least 50% of the LEDs’ population will emit at least 90% of its original amount of
lumens.
Average rated life is based on engineering data testing and probability analysis. The Fortimo LED SLM modules
are specified to reach L90/B50 for the nominal Keylight specifications.
Example lumen maintenance as a funtion of operating hours for B50 at Tc nominal.
Operating lifetime (hours)
Lumen Maintenance (%)
Keylight test facility

Opera Contemporary

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Lighting Collection Vol.4 2023 439 of 446

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