IES file generator

Build an approximate photometric IES (IESNA LM-63) file for a luminaire: set the power, luminous flux and size, pick a light-distribution curve and the spot symmetry, preview it in a live 3D room and download the .ies file.

Luminaire

W
lm
мм
мм
мм
Beam angle
°
Beam width for cosine curves; ignored for Batwing / Uniform.
Everything on one side of the plane is cut away. Click the button again to turn off.
Luminaires
Objects
Elements
Walls
0E avg, lx
0E min, lx
0E max, lx
0U₀ (min/avg)
LMB — rotate · wheel — zoom · RMB — pan · drag an item · Ctrl+C/V — copy · Del — delete Shift + drag a box — select multiple walls
Loading 3D…
Drawing stays on — draw walls one after another; exit with Esc or the button. Shift — straight walls (multiples of 45°). Drag nodes — walls follow and snap. Click a wall/node to select, Del to delete. Drag a box over empty space to select many walls, then Del.
Parameters ×
Important

This produces an approximate photometric file from a parametric model — useful for quick studies, mock-ups and testing. It is not a measured laboratory (goniophotometer) file and should not be used for certification or as a real product datasheet.