Dialux 4.3 — Short Report What it is Dialux 4.3 is an older version of DIALux, a professional lighting design and calculation software used to create, calculate and visualize interior and exterior lighting. It supports photometric imports, luminaires placement, daylighting analysis, and rendering. Key features (v4.3)
Import of IES and EULUMDAT photometric files Room and building geometry editor Daylight and artificial lighting calculations (illuminance, luminance) Light mapping and rendering for visualization Standard-compliant calculation (EN/ISO norms support typical for its era) Output reports with tables, false-color maps and render images Basic exterior/street lighting modules (depending on installed extensions)
Typical uses
Interior office, retail and industrial lighting layouts Exterior and street lighting studies Compliance checks against illuminance standards Early-stage visualizations for client presentations dialux 43
Limitations (compared with modern versions)
Older user interface and workflow; less intuitive than current DIALux Evo Fewer advanced simulation features (e.g., dynamic daylighting, BIM integration) Limited or no direct BIM/IFC workflow compared to newer releases Possibly incompatible with some newer photometric formats or manufacturer plugins Fewer rendering quality and post-processing options
File formats and compatibility
Reads IES and EULUMDAT (.ies, .ldt) Project files from v4.3 may not open in DIALux Evo without conversion; backwards compatibility is limited
Practical advice
For legacy projects or clients using v4.3, keep a copy of the software and export final reports to PDF. For new projects or BIM workflows, prefer DIALux Evo (newer, actively maintained). When using v4.3, verify photometric file versions and test exports to ensure deliverables open on recipients' systems. Dialux 4
Deliverables you can expect from v4.3
Calculation tables (average/minimum/maximum illuminance) False-color illuminance maps Glare evaluations (basic) Rendered views of lighting scenes Printable PDF reports