Practice question

What is 'L70' in the context of LED lighting?

  1. The maximum operating temperature
  2. The point at which the LED light output has depreciated to 70% of its initial lumens, defining rated life
  3. The minimum voltage requirement
  4. The maximum wattage limit

Answer: B — The point at which the LED light output has depreciated to 70% of its initial lumens, defining rated life

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