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General information

Welcome to DIALux evo This wiki is intended to help you to work quickly and effectively with DIALux evo. If you have already had experience with Windows programmes, you should not have difficulty getting started. To enable you to acquire the knowledge to work professionally with DIALux DIAL offers regular training courses and seminars. You can find out about the dates and contents of these seminars at [1]. Innovations and updates can also be found on our homepage


System requirements

System requirements

  • CPU with SSE2 support
  • 4 GB RAM (min. 2GB)
  • OpenGL 3.3 graphics card(1 GB RAM)(for evo 4.0)
  • OpenGL 3.0 graphics card(1 GB RAM)(for evo 4.1)
  • Resolution min. 1024px x 768px
  • Windows Vista SP2 (32bit/64bit)
  • Windows 7 (32-bit/6-bit)
  • Windows 8 (32-bit/64-bit)


Start the 32-bit or 64-bit setup.exe file and follow the instructions in the installation programme. To improve the software certain information is sent to DIAL during setup: - a unique ID whereby no direct inference to your person is permitted - information regarding the operating system installed (version, service pack...) - hardware information ( RAM, display resolution, ...) - detailed information about the capabilities of your graphics adapter

No personal data are transmitted. Further information is available here:

Terms and conditions of use

Data security

Is parallel installation of DIALux evo and DIALux 4 possible?

Parallel installation of DIALux 4 and DIALux evo on your computer is easy and causes no problems. Neither of the programmes has any influence on the other. The electronic catalogues of luminaire and lamp manufacturers are supported by both programmes. If both programmes are being run at the same time, the luminaires and lamps from the catalogues are transferred to both programmes.

32-bit or 64-bit version? Which version should I use?

If you have suitable hardware and a 64-bit operating system, then you have access to a larger RAM. It is possible to create and calculate larger projects in DIALux evo. Old DIALux projects (DIALux 2.0 to DIALux 4.11) can no longer be opened with this version. Our recommendation is the 64-bit version The 32-bit version should only be used if

  • a 32-bit operating system is installed on your computer
  • if you wish to continue to import old DIALux projects

DIALux evo projects can be loaded very easily by both versions as long as the RAM has the required capacity available.

DIALux 4
DIALux evo

Operating principle

DIALux evo is divided up into a simple mode and tool concept. In each mode you will find typical tools for working with each.

Can several instances of DIALux evo be started at the same time?

It is possible to have several instances of DIALux evo open at the same time and thus work on different projects.

N.B: There may be problems when exchanging data
between the different instances.

General settings

Via the menu [File -> Settings -> General settings] open the mode "Settings

General information
Here you can define how often DIALux evo should remind you to store your project and the maximum number of working steps that can be cancelled.

Language settings
After installation DIALux evo operates in the language of your operating system. Under "Language settings" you can change the language of the interface and the output and also switch from metric to imperial dimensions. Here it is also possible to set the display of the photometric units displayed in the European system or the imperial system.

Here you can specify how many decimal places to be displayed on dimension lines.

Project settings
Here you enter the project folder in which your projects are normally stored

Other saving locations
Furniture and materials can also be stored on your hard disc. Here you can set the respective storage location. Only in extreme cases is it necessary to change the storage location.

Output settings
If desired a footer text of your own and a personal logo in the header can be displayed in the printed output. Adjust the settings here as required.

General settings


Via [File -> Settings -> Norms] open the "Norm control centre" mode. Here you can make individual settings related to the topic of norms.

Default settings

Default settings

Here you select from different settings. With the button "Generate copy of template selected" you generate a new template which you can edit. The templates supplied by DIALux cannot be edited.
You can make the following settings:

  • Illuminance ratio according to LG7
  • Provision for reflection on the ceiling with emergency lighting according to LG12
  • Ratio of distance to height, SHR
  • Maintenance value according to EN 12464 or blanket value


In the profiles we have assembled general default settings, recommendations and benchmarks for individual areas. When you select a profile in these areas or in a room, DIALux reverts to these values. Via "Generate a copy of the profile selected" you can generate or change your own profiles.

The profile supplied by DIALux cannot be changed.

Explanation of terms / Legend

By workspaces DIALux evo means a programme setting which supports the designer in his current tasks with an adapted user interface.. DIALux offers the following workspaces:

  • Outdoor planning and design of open spaces. You use the same workspace if you begin with a DWG/DXF import or with an empty rectangular space.
  • Street Scheme Editor
  • and simple design of indoor spaces

When you begin your work, you select workspace on the start screen. Later you can change between the individual workspaces within a project. To do this you use the combo box in the top right-hand corner


In DIALux, "mode" refers to the individual work steps within a workspace, e.g. design, light planning, calculation, documentation. You will find the mode options above the CAD window.


Each mode provides different tools for the individual activities within one work step. The tools are always on the left of the display screen.

Each tool fulfils different tasks. For this you use the activities. The activities are on the right next to the tool. Settings, name and value are below the tools.

Tools and activities