Dialux 3.14 ((install)) May 2026

DIALux reports are the primary output for professional lighting designs, detailing lux levels, luminaire layouts, and energy efficiency. Key Elements of a DIALux Report

Summary Page: Provides an overview of the calculated results, including average illuminance ( Emcap E sub m ), minimum illuminance ( Emincap E sub m i n end-sub ), and uniformity ( U0cap U sub 0

Luminaire Layout Plan: A scaled floor plan showing the exact 2D coordinates for every lighting fixture in the project.

Luminaires List: A detailed inventory including brand names, product series, wattage, and luminous flux for each fitting used.

Calculation Surfaces: High-resolution grids for specific areas (e.g., desks or workplanes) displaying point-by-point lux values.

False Color Rendering: A visual gradient representation of light distribution, which is essential for quickly identifying dark spots or excessive glare. How to Generate and Manage Reports Dialux 3.14

DIALux is an industry-standard professional software suite used by lighting designers, architects, and electrical engineers to plan and calculate lighting for indoor and outdoor spaces. It allows users to simulate lighting scenes using real-world luminaires from approximately 400 manufacturers. 

While "3.14" is not a current primary version—as the software has evolved through DIALux 4 (the classic version) and into the modern DIALux evo—the platform continues to provide comprehensive tools for precise illumination engineering.  Core Capabilities 

Realistic Simulations: DIALux creates optimal lighting solutions by calculating dimensions, ceiling types, and light sources to generate high-quality visualizations.

Standards Compliance: The software provides detailed analysis including lighting classes and energy efficiency metrics (IPEA/IPEI) to ensure projects meet official standards.

Versatile Design: It is used for diverse projects ranging from simple interior rooms to complex golf course lighting and large outdoor areas. DIALux reports are the primary output for professional

File Interoperability: Modern versions allow for the import of 3D formats like .3ds, M3D, SAT, and IFC, and can export to AutoCAD.  Software Access and Requirements 

Educational Access: Students and teachers can often access DIALux Pro for free with full functionality for academic use.

System Requirements: To run the latest iterations (DIALux evo), you typically need a 64-bit Windows OS, at least 4 GB of RAM (8-16 GB recommended), and a graphics card supporting OpenGL 3.2.  Lighting design made easy with DIALux evo

2. The UI & Workflow: "Brutalist Efficiency"

The Good:

• No Fluff: The interface is grey, boxy, and looks like Windows XP. But every button does exactly one thing, and it does it fast.
• The Wizard: The "New Project Wizard" is legendary. It walks you from room dimensions → mounting height → working plane → desired lux level → suggests luminaire count. No other version has done this as intuitively.
• Telegram Manager: A unique feature lost in evo. It allowed you to define complex DALI/analog control groups (scenes, time delays, presence detectors) before placing luminaires. For facade or emergency lighting, this was a killer feature.

The Bad:

• No Direct 3D Manipulation: You cannot click and drag a light fitting in the 3D view. You must input coordinates (X,Y,Z) numerically.
• The "Tree" Navigation: The left-hand project tree is deep. To change a wall texture, you click: Project → Room 1 → Surfaces → Wall 4 → Material. It’s tedious.

Example Checklist Before Delivering a Project

• Units and standards set correctly.
• All luminaire photometry verified and oriented.
• Calculation plane heights and grid densities appropriate.
• Reflectances set to match finishes.
• Maintenance factor and lamp lumen depreciation applied.
• Daylight modeled where relevant and controls specified.
• UGR/glare checks performed for work areas.
• Final report includes images, tables, luminaire schedules and assumptions.
• Files versioned and exported formats created (PDF report, DWG, luminaire list).

4. The Luminaire Library (The Ecosystem)

Strength:

• Over 600 manufacturers (Philips, Osram, ERCO, Zumtobel) provided native .dib (DIALux Index Binary) files.
• The Exchange Format: You could drag a .uld (User Luminaire Data) file from an email directly into the library. It auto-installed.

Weakness:

• No Live Update: In 2025, manufacturers no longer provide 3.14 files. You must convert modern .ldt or .ies files using the external "Luminaire Viewer" tool, which often corrupts RGBW tunable-white data.

Common Pitfalls (And How To Fix Them)

Even a great tool has quirks. Here is how to avoid crashes and errors in Dialux 3.14.

• The "Red Wall" Error: If you import a CAD file (DXF/DWG) and the walls turn red, it means the normals are inverted. Fix this in your CAD software before import; 3.14 cannot flip normals natively.
• Memory Limit: Dialux 3.14 is a 32-bit application. It cannot use more than 2GB of RAM. If you model a factory with 5,000+ luminaires, you will get a "Not enough memory" error. Split the project into zones.
• Plugin Libraries: Many manufacturers have removed their 3.14 plugins (usually .lci or .lb6 files). Archive your old libraries. You can often convert modern evo files backward using IES files, but direct plugins are gold dust.

4.3 Daylight Integration

• Daylight factor calculation (DF in %)
• Determination of artificial lighting switching points (dimming or stepped control)

Step 4: Isolines and False Colors

Dialux 3.14 has one of the best false-color rendering engines for print. Go to Results > Calculate (F5). Then, Results > Isolines. You can print these isolines directly to PDF. The clarity of black-and-white isolines from 3.14 is often cited as superior to the color gradients of evo for technical documentation.

Step 1: Define the Room

Navigate to Room > Room properties. You define your length, width, and height. A critical feature lost in evo is the "Calculation grid" tab. In 3.14, you manually define the starting point of your grid (X/Y offset). Pros always set offset to 0.5m from walls to avoid edge errors. No Fluff: The interface is grey, boxy, and