For Interior Designers & Architects

To know the Diameter of Light

July 10th, 2020

How much area (in Dia) it will cover at a particular height?

  • Magical number 0.018
  • Formula
  • Diameter of Light = 0.018 x Beam Angle x Height
  • Ex : Downlight with 36 Degree beam at 3 Meter Distance / Height
  • Diameter = 0.018 x 36 x 3
  • Total – 1.944 Meter (Area it will cover at 3 meter height)

Note – This formula works upto 50 Degree