OpenGL 2.1 compatible graphics card with at least 1 GB VRAM for 3D rendering views.
Advanced, accurate calculations incorporating natural light.
Searching for (often referred to as 4.3 due to versioning confusion) can be tricky because the developers have shifted focus to the newer DIALux evo . However, many professionals still prefer the "Classic" version for its fast calculation times and specific features like emergency lighting or outdoor planning. Official Download Link dialux 43 download link
Proprietary DIALux data packages provided directly by manufacturer plug-ins. How to Import Data
Let me know how you'd like to ! Share public link OpenGL 2
Elena was a lighting designer who believed in old tools. Her mentor, Mr. Novak, had sworn by DIALux 4.3 — stable, fast, and perfect for the simple street lighting projects they ran together. But that was in 2012. Now, ten years later, her own laptop held only DIALux evo, which felt bloated and slow for her vintage workflow.
If you are starting a new professional project, consider using DIALux evo Share public link Elena was a lighting designer
DIALux is a free, professional lighting design software developed by the German Institute for Applied Lighting Technology (DIAL GmbH). It is widely used by lighting planners, architects, and interior designers to calculate, visualize, and analyze lighting systems for indoor and outdoor spaces. The software is renowned for its ability to create photorealistic 3D visualizations, import CAD files, and work with a vast library of real-world luminaires from over 190 leading manufacturers.
Ideal for quick calculations in standard rooms, corridors, and outdoor areas [1].
It runs exceptionally well on older laptops and computers without dedicated graphics cards.