LDT to IES Converter
Bidirectional converter between EULUMDAT (.ldt) and IES (.ies) photometric file formats. Drop a file to auto-detect the format, preview the parsed data, and download the converted file.
Drop a .ldt or .ies file, or browse
Format is auto-detected. The file will be converted to the other format.
About this converter
What it does
- ✓ Converts EULUMDAT (.ldt) files to IES LM-63-2002 (.ies) format
- ✓ Converts IES (.ies) files to EULUMDAT (.ldt) format
- ✓ Auto-detects input format from file extension or content
- ✓ Shows a preview of parsed metadata before download
- ✓ Preserves luminaire name, manufacturer, dimensions, flux, and candela data
Limitations
- ✗ TILT=INCLUDE data in IES files is not carried over to LDT
- ✗ Some metadata fields have no equivalent in the target format and are approximated
- ✗ Does not validate photometric accuracy of candela distributions