Edit, chart and check IES and LDT files at once.

Fix metadata across a catalogue. Draw polar, Cartesian, cone and isolux diagrams. Get BUG ratings and ULOR values for every file, with the results in a CSV file. Make a one-page PDF report sheet for each file. Check the UGR table of a luminaire, and compare two or three luminaires side by side.

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Polar intensity diagram, C0–C180 and C90–C270Peak intensity 300 cd/klm at gamma 0 degrees. The outer ring is 300 cd/klm.0°30°30°60°60°90°90°120°120°150°150°180°100200300cd/klmC0–C180C90–C270
A polar diagram drawn by IESDesk from an LDT file.

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Open one file at a time, or compare two or three.

  • IES View: key figures, metadata, diagrams and a 3D view
  • LDT View: key figures, metadata, diagrams and a 3D view
  • Diagrams: four diagrams in the Minimal style
  • BUG Rating: backlight, uplight and glare of one file
  • ULOR: the upward light output ratio of one file
  • UGR Table: the standard UGR table of one file
  • Report sheets: a one-page report sheet (PDF) for one file
  • Compare: two or three luminaires side by side
  • Lighting Scenes: wall, open area, street, bollard, room and corridor previews, with lux readings and a 3D view
  • Learn: guides to photometric files

Need higher limits, branded report sheets or custom diagram themes? See Enterprise.

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