Your tool for modern lighting design
With DIALux evo, you design lighting for indoor and outdoor areas – using real luminaires, standards-compliant calculations and realistic visualizations. Perfect for anyone who wants to use light effectively.
Download for free now → DIALux Pro →
DIALux evo is the world’s leading software for lighting design
Free of charge
More than 400 DIALux Members fund the development of DIALux evo – so the basic version remains free for you.
International
DIALux evo is available in 26 languages and is used by lighting designers, architects, and electrical planners all over the world.
Up-to-date
Regular software updates continuously add new features tailored to your specific planning needs.
One software for all areas
Whether indoors or outdoors – with DIALux evo you create lighting concepts that are technically precise and visually impressive. Discover the wide range of applications now!
Indoor lighting
Design lighting for indoor spaces – from single rooms to entire buildings. Import 3D models, DWG plans, or room scans and place real luminaires flexibly. Lighting scenes and realistic visualizations provide a clear presentation. Powerful calculation and evaluation tools deliver precise and standards-compliant results.
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Emergency lighting
Design lighting for escape routes and anti-panic areas to ensure maximum safety in public and commercial buildings. With DIALux evo, you can position emergency luminaires and identify optimization potential using a real-time false color preview. DIALux evo helps you plan in compliance with standards, identify minimum values, and adjust illuminance levels optimally.
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Outdoor lighting
Design lighting for outdoor areas such as façades, plazas, or parks. Import 3D models, plans, or images and create your environment with great attention to detail. Precisely position luminaires, adjust mounting height and beam angles, and minimize light pollution and glare – for efficient and standards-compliant outdoor lighting.
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Street lighting
Plan safe traffic routes in compliance with standards. Define street profiles and choose the luminaire arrangement. Automatic optimization helps you adjust pole spacing, mounting heights, and tilt angles to improve glare control and uniformity. DIALux evo provides a detailed analysis including lighting classes, isolux lines, and energy efficiency metrics (IPEA & IPEI).
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Six strong reasons for DIALux evo
Holistic planning
Plan indoor and outdoor areas within a single project and realistically simulate their interaction.
Standards-compliant planning
With DIALux evo, you plan according to national and international standards. You can find the included standards here.
Daylight
Combine artificial and natural light and simulate their interaction – realistically and energy-efficiently.
Realistic visualizations
With ray tracing, you create photorealistic lighting moods that present your design in a vivid and convincing way.
Real luminaires
Plan for free using real luminaires from our DIALux Members. We collaborate with all leading brands.
Open interfaces
DIALux evo supports IFC and integrates seamlessly into BIM processes – ensuring smooth data exchange.
Open interfaces with DIALux Pro
Seamlessly integrated thanks to Open BIM
DIALux relies on Open BIM, allowing you to easily import and export IFC files. Importing 3D building models saves you from time-consuming manual geometry creation and significantly speeds up your planning. At the same time, you can export your planning results as an IFC model and integrate them directly into the BIM process.
Collaboration with software solutions such as Graphisoft DDScad enables real-time data exchange, ensuring that changes are automatically synchronized and your planning is always up to date. Support for scanned 3D models from Metaroom also simplifies lighting design in existing buildings by providing precise data for realistic lighting.
IFC import and export are part of DIALux Pro. This feature requires an active DIALux Pro subscription.
Learn more about Open BIM → DIALux Pro →
International and national standards in DIALux evo
Indoor lighting
ASR A3.4 (2011)
Technical Rules for Workplaces: ASR A3.4 Lighting and Visual Connection
EN 12464-1
Lighting of work places – Part 1: Indoor work places
ISO 8995-1:2002(E)
/CIE S 008/E:2001
Lighting of work places – Part 1: Indoor
EN 1838
Lighting applications – Emergency lighting
EN 12193
Light and lighting – Sports lighting
EN 15193
Energy performance of buildings – Energy requirements for lighting
CIE 117
Discomfort glare in interior lighting
CIE 97
Maintenance of indoor electric lighting systems
CIE 40
Calculation procedures for interior lighting: Basic method
CIE 52
Calculation procedures for interior lighting: Practical method
CIE 110
Spatial distribution of daylight – Luminance distributions of various skies
DIN 5034
Daylight in interior spaces
DIN V 18599 1,4 und 10
Energy performance of buildings
IES LM 79-08
Electrical and photometric measurements of solid-state lighting products
IESNA LM-63
Standard file format for electronic transfer of photometric data
IESNA Lighting Handbook (10th Edition)
Illuminating Engineering Society of North America Lighting Handbook
JIEG-001 method II(2013)/III(2005)
Maintenance Factor and Maintenance Planning in Lighting Design
SLL Lighting Guide 7
Office lighting
SLL Lighting Guide 12
Emergency lighting – A design guide
VBG Publ. SP2.4 BGI 856
Office lighting
CTE SU, SU4
Código Técnico de la Edificación (CTE)
Green building council Australia
Green Star – Office V3
Outdoor lighting
EN 12464-2
Lighting of work places – Part 2: Outdoor work places
CIE 112
Glare evaluation system for outdoor and sports lighting
CIE 150
Guide on the limitation of the effects of obtrusive light from outdoor lighting installations
IES LM 79-08
Electrical and photometric measurements of solid-state lighting products
IESNA LM-63
Standard file format for electronic transfer of photometric data
IESNA Lighting Handbook (10th Edition)
Illuminating Engineering Society of North America Lighting Handbook
LAI 2012/2015
Guidelines for measuring, assessing and reducing light emissions
OENORM O 1052 2022
Light emissions – Measurement and assessment
Street lighting
EN 13201
Road lighting
CIE 140
Road lighting calculations
CIE 115:2010
Lighting of roads for motor and pedestrian traffic
CIE 171
Guidance for the Control of Obtrusive Light from Outdoor Lighting Installation
IES LM 79-08
Electrical and photometric measurements of solid-state lighting products
IESNA LM-63
Standard file format for electronic transfer of photometric data
IESNA RP-8-00R2005
Roadway lighting
IESNA Lighting Handbook (10th Edition)
Illuminating Engineering Society of North America Lighting Handbook
ITC-BT-28
Outdoor lighting installations
ROVL 2011
Dutch Guideline for Public Lighting
Get started with DIALux now
DIALux evo
The free version includes all essential features and more than 2.5 million luminaires from over 400 DIALux Members.
Unlock Non-Members
Unlock luminaires from manufacturers who are not yet DIALux Members for your lighting design with DIALux evo.
DIALux Pro
Export project data to Microsoft Office with a single click and integrate your design into BIM processes using IFC standards.
