Download DIALux
and DIALux product catalogues
DIALux evo 9
The worldwide standard in lighting design software
Design, calculate and visualize light for single rooms, whole buildings, streets, outdoor areas and daylighting. Free of charge.
Download DIALux evo 9 + patch 4 DIALux FAQ ›
Hardware requirements
CPU with SSE2-support 4 GB RAM (min. 2GB), OpenGL 3.2 graphics card
(1 GB RAM), Windows 7/8.1/10 (32/64 bit), Resolution min. 1024 x 768 px
DIALux 4
Please notice: We recommend to use DIALux evo. Use DIALux 4 for emergency lighting and sports areas only.
Download DIALux 4.13
Hardware requirements
Processor P IV or later, 1.4 GHz or faster, 1 GB RAM, Graphic card with OpenGL- or DirectX-Support, Resolution 1280 x 1024 px, Windows XP, Windows Vista, Windows 7/8.1/10
Ready to get started?
Learn the basic functions of DIALux evo online
Online course with 4 units and a total of 20 videos for intensive training. Learn comfortably from home. Exercises for download. Many tricks and tips.
Want to know more?
Expand your knowledge in DIALux evo online
Second part of our online course for advanced learners. Learn how to create extensive lighting design projects and discover the full power of DIALux.
DIALux product catalogues
We cooperate with all leading brands in the lighting industry. You can download their catalogues here to use the products in DIALux.
The asteric (*) indicates a premium partner.
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You want to become a DIALux partner?
Get more information about the DIALux partnership.
Related Tools
LDT Editor
Use our LDT Editor for editing EULUMDAT files (*.ldt).
Please notice: We recommend to use photometric files in ULD file format (*.uld) for your lighting designs in DIALux. Learn more in our DIALux FAQ.
Download LDT Editor
Hardware requirements
Windows 7 (32/64 Bit), .Net Framework 4.5