Searching for DIALux 4.13 (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
The safest way to get the software is directly from the developer's archive. Using third-party sites can risk malware or outdated installers. Download DIALux 4.13.0.2 (Official Archive) Version: 4.13.0.2 File Size: ~230 MB
OS Compatibility: Windows 10 / 11 (requires .NET Framework 3.5 enabled). Key Features of DIALux 4.13
While it is older than DIALux evo, it remains a powerhouse for:
Speed: Much faster for simple rectangular rooms or large industrial warehouses.
Standards: Built-in support for EN 12464 (Indoor) and EN 13201 (Street lighting).
Emergency Lighting: Includes dedicated wizards for escape routes and anti-panic lighting.
Outdoor Planning: Excellent for sports fields and street lighting calculations. Pro-Tips for Installation
Enable .NET 3.5: Since this is legacy software, you must go to "Turn Windows features on or off" in your Control Panel and ensure .NET Framework 3.5 is checked, otherwise the installer may fail.
Plugin Updates: Remember that DIALux is a shell; you still need to download luminaire plugins (from brands like Philips, Zumtobel, or Osram) or use ULD/IES/LDT files to get accurate data.
Co-existence: You can install both DIALux 4.13 and DIALux evo on the same computer without them interfering with each other.
The official version of DIALux 4.13 (often colloquially referred to as 4.13 or 4.3 due to versioning confusion) is the final iteration of the classic DIALux software before the transition to DIALux evo. While DIALux evo is the modern standard, many designers still use the classic version for specific features like outdoor emergency lighting or street lighting calculations. Download Links
Official DIALux Website: You can download the latest stable classic version directly from the DIALux Download Page (usually listed under "DIALux 4"). dialux 43 download link
Alternative Mirrors: If the official site is undergoing maintenance, reputable software mirrors like Uptodown host previous versions including the 4.x branch. Drafted Message to a Colleague/Client
If you need to share this link with a peer or client, here is a concise draft: Subject: Download Link for DIALux 4.13 (Classic) Hi [Name],
As we discussed, I’ve attached the link to download the classic version of DIALux. This version is still useful for specific calculations that aren't yet fully mirrored in evo. You can download it here: DIALux 4 Download
Quick Tip: Remember that you can run both DIALux 4 and DIALux evo on the same machine without conflicts if you need to switch between projects. Best regards, [Your Name]
The official download link for DIALux 4.13 (often referred to as 4.3 due to versioning confusion) is available directly from the developer, DIAL.
Download Page: You can find the installer on the DIALux official website.
Version Note: DIALux 4.13 is the final version of the "classic" DIALux software. It is maintained primarily for specific tasks like emergency lighting and outdoor/street lighting calculations that some users still prefer over the newer DIALux evo. Key Features of DIALux 4.13
Classic Interface: A CAD-like environment that many long-time lighting designers find faster for simple 2D-to-3D room layouts.
Standard Compliance: Supports international standards for indoor and outdoor lighting design.
Manufacturer Catalogs: Allows you to import and use LDT and IES files from almost any luminaire manufacturer.
Reporting: Generates professional PDF data sheets, including isoline plots, false color renderings, and UGR (glare) ratings.
Specialized Outdoor Tools: Includes dedicated wizards for street lighting geometry and calculation. Searching for DIALux 4
System Requirement: While DIALux 4.13 is older, it is still compatible with Windows 10 and 11. However, it is no longer receiving major feature updates, as the company has shifted focus to DIALux evo.
Software Report: Dialux 4.3
Introduction: Dialux is a popular software used for calculating and visualizing lighting designs. The following report provides an overview of Dialux 4.3, including its features, system requirements, and a download link.
Software Details:
Key Features:
System Requirements:
Download Link: You can download Dialux 4.3 from the official website:
https://www.dialux.com/en/download/dialux-4-3/
Installation Instructions:
Known Issues and Limitations:
Conclusion: Dialux 4.3 is a powerful software tool for lighting design and simulation. With its robust features and user-friendly interface, it is an ideal choice for architects, engineers, and lighting designers. If you have any issues or questions, please refer to the software's user manual or contact the support team.
Recommendations:
Disclaimer: This report is for informational purposes only. The download link provided is subject to change, and users are advised to check the official website for updates.
DIALux 4.13 is no longer officially supported or provided for download by the manufacturer, DIAL GmbH . They now exclusively promote DIALux evo as the current standard for lighting design. DIALux Community Official Status and Recommendation Official Stance
: The developers have officially discontinued DIALux 4.13 and do not provide download links for it on their official download page Recommended Version : Users are strongly encouraged to use DIALux evo
, which supports entire buildings, modern BIM workflows, and current lighting standards. Compatibility
: DIALux 4.13 is considered technically outdated and may face compatibility issues with modern versions of Windows. Alternative Download Sources
While not officially hosted, some users seek the legacy version for specific tasks like tunnel or sports lighting not yet fully integrated into older evo versions. You may find the installer on third-party software repositories, though these are not verified by the developer: DIALux Community : Often maintains a version history of DIALux including version 4.13. Community Forums
: Users occasionally share legacy installers via file-sharing links on the DIALux Community Support Third-party sites : Platforms like UpdateStar
list the 4.13 version for download, though security should always be verified when using non-official sources. Important Note:
Always scan files from third-party sources for malware before installation, as these links are not maintained by the original creators. or because of a specific feature like sports or tunnel lighting? DIALux 4.13 For Windows | Download 26 Mar 2026 —
Meta Description: Looking for the classic version? Access the Dialux 4.3 download link, learn about system requirements, and find out why many designers still prefer this legacy software over the newer Evo versions.
One of the biggest challenges with Dialux 4.3 today is the availability of luminaire data.
.ldt (Eulumdat) and .ies files manually in 4.3, but the "Online Catalog" feature may no longer function as it used to.