Practice question

What metal halide (MH) lamp characteristic makes it different from HPS for roadway use?

  1. MH lamps produce no visible light
  2. MH lamps produce white light with significantly better color rendering (CRI 65-90) than HPS
  3. MH lamps are more energy efficient than HPS
  4. MH lamps last longer than HPS

Answer: B — MH lamps produce white light with significantly better color rendering (CRI 65-90) than HPS

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