How does TM-21 work?

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How does TM-21 work?

TM-21 uses LED performance data collected through LM-80 testing, which measures lumen output over at least 6,000 hours. This data is then extrapolated using a standardized formula to estimate how long an LED will take to degrade to:

  • L70 (70% of initial brightness)
  • L80 (80% of initial brightness)
  • L90 (90% of initial brightness)

These ratings indicate the expected useful lifespan of an LED before noticeable light loss occurs.

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