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.
A free account takes up to 100 files per batch or job. Sign up with your work email.
Polar intensity diagram, C0–C180 and C90–C270 Peak 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° 100 200 300 cd/klm C0–C180 C90–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
Free account
Work on up to 100 files per batch or job.
Edit : metadata across all files, IES and LDT in one drop
Diagrams : Minimal diagrams in one ZIP file for each format
BUG Rating : every file in one CSV file
ULOR : every file in one CSV file
Report sheets : every file in one ZIP file
Your files: every batch and download, kept for 30 days
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Need higher limits, branded report sheets or custom diagram themes? See Enterprise .