Since Dialux 4.13 is a legacy version, it is no longer featured prominently on the main Dialux homepage. You can download the software directly from the official Dialux servers or verified mirrors.
If you are having trouble locating the specific archive page on the website, let me know what you are using or if you need help finding manufacturer plug-ins for your lighting calculations.
: Allows you to import and use LDT and IES files from almost any luminaire manufacturer. dialux 43 download link
(Note: DIAL GmbH has systematically phased out older versions like DIALux 4.13 to focus on DIALux evo, which integrates all classic features into a modern, 64-bit architecture). DIALux evo vs. DIALux 4.13: Key Differences
A common concern is how a professional software like DIALux can be free. The answer is a successful "open-core" model. The developer, DIAL GmbH, offers the powerful "DIALux evo" for free to users. Their revenue comes from two main sources: Since Dialux 4
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As of 2026, , which recommends using DIALux evo . Therefore, finding a direct link on the main website is no longer possible. : Allows you to import and use LDT
Once you have downloaded the software, follow these steps to install Dialux evo 4.3:
For expansive outdoor areas, street lighting grids, and complex sports arena illumination, DIALux 4.13 offers a highly optimized, spreadsheet-like interface. Designers can quickly plot calculation points and position floodlights without the overhead of rendering complex 3D architectural elements. 4. Familiarity and Speed
Generate detailed PDF printouts including isoline diagrams, false-color renderings, value charts, and parts lists for client presentations.