Free tool · Entrune View

IES / LDT photometric viewer

Drop a luminaire photometric file to instantly see its polar intensity distribution, rated output, beam angle and integrated flux. Nothing is uploaded: the file is read entirely in your browser.

Drop an IES or LDT file here

or tap to browse · .ies · .ldt

Rated flux

Power

Peak intensity

Beam (FWHM)

Efficacy

Integrated flux

What kind of fixture is this?

Pick a type and we’ll drop one of them into a generic space so you can see what it actually does.

Average

Minimum

Maximum

Direct light only · maintained values (MF 0.8) · fixed demo scene. The full Entrune tool does real rooms, arrays, uniformity, SANS targets, outdoor high-mast and perimeter runs.

Need to place these in a room?

Entrune runs the full photometric design: lux levels, uniformity and fixture counts, indoor and outdoor. Validated against Relux.

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Files are parsed locally in your browser and never leave your device.