If you are working on older projects that require this specific version, follow these steps: Download DIALux lighting design software
DIALux 4.13 Download Link: How to Get and Use the Classic Lighting Design Software
There is no version 4.3 available as a standalone major release. The early version 4.0 is ancient. You want version 4.12 or 4.13. dialux 43 download link
Why you might want DIALux 4.3
as it is the current industry standard and actively supported. If you'd like, I can help you: Choose between 4.13 and evo based on your project type. specific luminaire plugins for major brands. calculation errors or "grayed out" buttons in the software. How would you like to proceed with your design If you are working on older projects that
NVIDIA GeForce RTX series or AMD Radeon RX series (4 GB+ VRAM) Storage: 5 GB available NVMe SSD space Step-by-Step Installation Guide
Follow the on-screen instructions to complete the installation. DIALux 4.13 vs. DIALux evo Why you might want DIALux 4
Here is the safe path: