Calculate the amount of light necessary in a room, floor or outdoor area and design the lighting system appropriated to your needs.
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— when i try to import the autocad drawing the dialux program...
It seems that there may be an issue with the AutoCAD file format that you are trying to import into DIALux. Make sure that you are using a compatible file format and that the file is not corrupt. You can also try converting the AutoCAD file to a different format before importing it into DIALux.