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- Wed Nov 08, 2017 2:57 am
- Forum: Using DIALux evo
- Topic: Cone Diagram beam width interpretation
- Replies: 1
- Views: 3517
Hi All, This may be a very simple question. From what I have read, beam width is indicated at the point where the light intensity is 50% less than that of the centre beam. For example, for a 60 degree symmetrical downlight, this would be 30 degrees either side from the centre beam. Viewing the Dialu...