Practice question

What is the 'lighting power density' (LPD) metric used in energy codes?

  1. The weight of the luminaire per pole
  2. The total lighting power consumption per unit area (watts per square foot or square meter), used to evaluate energy efficiency compliance
  3. The density of poles per mile
  4. The brightness density of the LED chip

Answer: B — The total lighting power consumption per unit area (watts per square foot or square meter), used to evaluate energy efficiency compliance

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