Convert LDT to IES

Understanding LDT and IES file formats

LDT (Eulumdat) and IES (Illuminating Engineering Society) are both file formats used in the lighting industry to describe the photometric data of light fixtures. These files contain information about the distribution of light emitted by a fixture, which is crucial for lighting design and analysis.

The LDT format is widely used in Europe and is known for its detailed description of luminaire data. On the other hand, the IES format is more commonly used in North America and is recognized for its compatibility with various lighting design software.

How to convert LDT to IES

Converting an LDT file to an IES file involves translating the photometric data from one format to another. This process ensures that the lighting data can be used in different software environments, depending on the regional or project-specific requirements.

Best software for LDT to IES conversion

One of the best tools for converting LDT files to IES files is Relux. Relux is a powerful lighting simulation software that supports both LDT and IES formats, making it an ideal choice for conversion tasks.

To convert using Relux, follow these steps:

• Open Relux and load your LDT file.
• Navigate to the File menu and select Export.
• Choose the IES format from the available options.
• Save the converted file to your desired location.

Another option is DIALux, which also supports LDT to IES conversion. The process is similar, involving opening the LDT file and exporting it as an IES file.