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After finishing your plan, in the luminaire mode you can now, in the next step, plan the lighting. anning. The first control function "Activities" lists all the options for inserting luminaires.

  • Draw a rectangular arrangement
  • Draw a polygonal arrangement
  • Draw a circular arrangement
  • Draw a linear arrangement
  • Position a single luminaire
  • Automatic arrangement for defined areas

Of course you can position luminaires directly in your project using the "drag & drop" function.
If you do not wish to use the luminaires which have been inserted, you can simply replace them by selecting the function "Exchange selected luminaires" or "Exchange all luminaires of this type". To do this mark the appropriate luminaires in the CAD view.
You can plan your lighting using all the usual luminaire formats such as Eulumdat, IES, CIBSE, LTLI. Just use the import function "Import luminaire file".


In the control function "Active luminaire" the luminaire with which you last worked is displayed. With the "Select" button you come to the history of the luminaire. If luminaires have already been used, a list of the luminaires which were last used will be shown. Clicking with the right mouse button on a luminaire image will open the appropriate context menu. Here the data sheet of the luminaire can be displayed, if required, or the luminaire itself can be marked as a favourite or it can be deleted from the history. The data sheet of the luminaire can also be shown in the luminaire comparison. An external window, independent of evo , is opened. Here you have the opportunity to have an overview of a comparison of a large number of luminaires. If a luminaire is marked as a favourite, you will always find this in the tab "Favourites", whatever the project being used. The next tab "Catalogues" leads you to the luminaire catalogues which have been installed. You can also call up our project partners via "further catalogues...". You will automatically be forwarded to the manufacturer mode.

Below the active luminaire you will find all photometric data. The luminaire which was last selected or which is in the CAD view is always defined as "active". If you mark a luminaire in CAD, then other details will be shown as well as the photometric data. You require these details in particular when you wish to manually adjust the position, the assembly, the photometric values of the luminaire, maintenance data or even energy consumption.

Luminaire folders

Here you can access not only history, favourites and catalogues but also the folders which you have generated for luminaires.
You can generate and define theses folders yourself and then import them into evo by clicking on "Add folder... ".

Add a folder

After you have added a folder, you can open it in a separate window with a double click.
On the left hand side all the sub-folders are listed which you can select individually.

For this purpose the luminaires included in each of the folders selected are listed on the right hand side .

Luminaire folder

The same principle is found in the "Furniture and object tool".
There, as in the luminaire tool, you can also add your own folders for furniture and objects.


The lamp tool provides support when modifying an active luminaire. If you have not selected a luminaire in the CAD view, then an explanatory text appears below the control. As soon as a luminaire is marked, the complete control field opens. Here you can adjust not only the luminous flux but also the power and colour temperature of the original fitting and also the spectrum. In addition it is also possible to change the type of lamp. A list of the usual alternatives is available in the drop down menu.
After adjusting manually you only need to click on the button "Adopt" and the new fitting will be included in your planning.

Editing joints

If the luminaire model being used has one or more joints, then this is indicated by a symbol next to the manufacturer's logo. The editing of the joints in accordance with their possible alignment is done either graphically in the CAD view or manually in the input box. Please note that the lumianire must previously have been selected in CAD in order to switch all the buttons into active mode. The alignment is made visible by means of a rotation symbol along the axis. If you wish to set a focal point directly, then use the control "Set focal point" and select a point in the CAD. The alignment of the luminaire to the target selected is then automatic. You can align the luminaire according to all variants starting from C0 G0. By clicking on both buttons you will be led to the next variant without having to make any graphic or manual preparations. If you wish to reset to the original position of the rotation of the joint, then activate the "Reset angle " function. The joint will then be rotated to the starting position.


With the filter tool you can furnish your luminaire with different colour filters, correction or other filters. To do this, select one or more luminnaires with the mouse and select the filter desired either from those last used, from your favourites or from the DIAL filter catalogue. The tool shows you the filter spectrum and the spectrum resulting from the filter spectrum and the lamp spectrum. With the 'slider' you can determine how large the area should be which is covered by the filter. The RA value can be seen below the resulting spectrum. Values from R1 to R14 fade in when you move the mouse over the comparison colours. Here you can remove a colour filter which has been inserted or adopt the current selection.

Until you press the button "Adopt" the luminaire you have selected 
will not be changed and so no colour filter will have been inserted.

Lighting scenes

Lighting scenes

You can create as many lighting scenes as you wish for your projects. In each scene you can use different luminaires or different settings of the luminaires for the lighting installation. Multi-channel settings for luminaires may also be included in the light scenes. You do not have worry about control groups: DIALux calculates automatically how the luminaires should be distributed so that there are no conflicts between the lighting scenes due to contradictory dimmer setting.

The first lighting scene is set automatically for you. If you do not make any changes to this, all luminaires will be calculated with 100% luminous flux in one single lighting scene.

Generating a lighting scene for one zone

Using this function, with one click you can generate a lighting scene in which only those luminaires are used in the selected room or zone in order, for example to achieve a calculation result for one room only without the influence from external light sources. No other luminaires in this lighting scene are taken into consideration. Of course you can continue to edit and change this " room lighting scene".

Duplicating lighting scenes

With this function you can generate new lighting scenes. An already existing lighting scene which has been generated automatically by DIALux is used as the basis. Changes can be made to the copy, e.g.. different dimmer settings or different compositions of luminaire groups.

Generating new luminaire groups

Luminaire groups are luminaires which are switched on and off or are dimmed together or which have common channel settings. Just mark the luminaires concerned and press "Generate new luminaire group". A luminaire cannot belong to various luminaire groups. since this might lead to contradictory switching or dimming conditions. If you try to allot a luminiare to a second luminaire group within the lighting scenes, the function will be deactivated. In this case you must first remove the luminaire from the old luminaire group. To do this, select the luminaire and click within the luminaire group on the small minus symbol below the CAD. In the same way you can add a luminaire to a luminaire group.

Active lighting scene

Here you can edit the name and description of the lighting scene.

For larger projects it is of great benefit to allocate names to the
lighting scenes, e.g. "all on", "presentation", "pause", etc.
That makes switching around and finding again much easier.

With the checkbox "Generate output for this lighting scene" you decide whether all the calculation results of this lighting scene should appear in the outputs. Especially when many lighting scenes have been generated for presentation purposes it does not always make sense to create all the outputs possible.

Lighting scenes

All the lighting scenes created are listed here. They can be called up with a double click. Alternatively you can rearrange the lighting scenes at the top of the window and activate them with the button next to them. The creation of lighting textures for CAD may take a few moments. Room lighting scenes are marked with (S).

New luminaires are always inserted first into the active lighting scene.

Here it is possible to combine lighting scenes which makes sense e.g.for room lighting scenes. Instead of generating three room lighting scenes and all the combinations of the different lighting scenes, you now need only the three room lighting scenes. With the help of the check boxes these can be combined and visualised. If required, a combination of lighting scenes can be saved as a new lighting scene be used in the documentation.

Luminaire groups of lighting scenes. Here all the luminaire groups of the active lighting scene are listed. You can delete (-) or add (+) luminaires from or to the groups, rename or delete the group or set the luminous flux percentually. With multi-channel luminaires each channel can be set separately. On the right hand side you can see the symbols for:

  • updating each of the lighting scenes
  • setting all the luminaires together to 100% luminous flux
  • setting all together to 0%
  • combining luminaire goups with the same dimming values into one new luminaire group.

Energy consumption

In the course of your planning you acquire an overview of how high the current energy consumption of your installation is or how much energy can be saved. To do this select the option "Display energy tachometer" in [Light-> Properties tachometer] or select the appropriate option in display options. In addition you can set whether the LENI(kWh/a/m2) value, the energy consumption (kWh/a) or the costs should be displayed in the tachometer. In all displays it is possible to set a limit which then becomes a limit value in the tachometer. For the costs you can also select a currency. In the energy tool all three values are displayed next to each other. In the energy tool an energy sensor can also be inserted which takes into account energy saving according to EN 15193. Indicate whether constant lighting control is available and what kind of presence sensors are used. The energy tacho itself can be seen below the CAD window until it is deactivated by the user. The tachometer can either take into account the whole project("Whole") or only the current scene visible in the CAD window ("Current scene"). In this way it is possible to evaluate and plan single rooms or floor levels. The tachometer also displays the spectrum of possible energy saving through daylight which is why the display shows a minimal value for maximum saving through daylight and a maximum value without saving through daylight. Calculation is in accordance with EN 15193.

Data for the period of use of light are gathered from the user profile which you can set for each area. The geographical and geometrical information is gathered from the project itself.

Remember to indicate latitude and longitude in the site tool. 
This information is necessary for calculation according to EN 15193.