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SHR Diagram - Calculation for Uniform Lighting

For Uniform Lighting, SHR can be used as a Guide: 

  • SHR = Spacing to height ratio
  • Take SHR and x by your ceiling height
    • e.g. SHR of 0.8 x 2.4m ceiling height = 1.9 metre spacing between downlights
  • This gives even illuminance, if higher illuminance is required space closer together.


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