Feb 2026

Darkon is now issuing combined up/down IES files.


Please note - in the real world there are two light sources - up and down - with a displacement between the two corresponding to the height of the fitting. However, the IES file format can only simulate one single photometric centre.  This may lead to calculation errors, particularly on the Up/Indirect component, when the luminaire is placed close to a ceiling. 

Please contact Darkon if separate up and down files are required to mitigate this.
jeffrey.lawson@darkon.com.au


