How can I distinguish mercury vapor streetlights from metal halide streetlights?

Mercury vapor streetlights and metal halide streetlights look alike. How can I distinguish them?
  • CRI: The metal halide street lights have a higher CRI than mercury vapor street lights. Therefore, things look clearer under metal halide street lights.
  • Brightness: Metal halide street lights are brighter than mercury vapor street lights.
  • Color temperature: Metal halide street lights are whiter than mercury vapor street lights. Mercury vapor street lights perform well at penetrating the fog.

More reading: 7 Types of Street Lights Classified by Light Sources

What Others Are Asking

Do smart lights deter burglars?

Except for being smart and saving energy, do smart lights have other advantages? For example, can they deter burglars? How?

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