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LDT ↔ IES

IES Converter

Converts photometric data between the European LDT format (EULUMDAT) and the North American IES format – in both directions.

How it works

One data set, two formats

Many projects outside Europe require photometric data in IES format rather than the LDT/EULUMDAT format common here. The IES Converter reads the photometric structure – luminous intensity distribution, luminaire dimensions, luminous flux and other parameters – directly and produces a file in the respective other format.

It's built on a purpose-built EULUMDAT reader and writer that transfers the core photometric data in a structured way between both formats.

Diagram: IES and LDT files are converted into each other

Preview

What it looks like

IES Converter screenshot coming soon

In detail

What the IES Converter handles

  • Conversion in both directions: LDT → IES and IES → LDT.
  • Luminous intensity distribution, dimensions and luminous flux are carried over structurally.
  • Built on a purpose-built EULUMDAT reader and writer.

Questions about the IES Converter?