Practice question

What is 'color temperature' and how is it measured?

  1. The physical temperature of the lamp, measured in degrees Fahrenheit
  2. The appearance of the light (warm to cool), measured in Kelvin (K)
  3. The CRI value of the lamp
  4. The voltage rating of the lamp

Answer: B — The appearance of the light (warm to cool), measured in Kelvin (K)

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