Open LDT File
The file with the LDT extension contains useful photometric data for any device or software specialized in designing lighting installations.
LDT files are generally created and supplied by manufacturers of lighting products. LDT files store data for a given fixture, for example:
- Light distribution curve.
- Light intensity.
- Luminaire size.
LDT files are directly related to Eulumdat Formatted Luminaire Data File which were originally developed by DIAL for the DIALux LDT Editor software application.
DIALux software is used for design, calculate and visualize light for single rooms, whole buildings, streets, outdoor areas and daylighting.