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Open in CircadianLab to place this fixture in a room and calculate melanopic lux (EML), illuminance, UGR glare, and WELL v2 compliance — with radiosity simulation and real IES photometry. Free, no signup.
Mark Architectural Lighting Linear / Slot 4 PSW LED — S4LD_4FT_80CRI_35K_600LMF
S4LD 4FT 80CRI 40K 600LMF
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Polar Plot (2D)
Goniometer (3D)
Beam Analysis
Photometric Specifications
About this Photometric File
This page presents the IES photometric distribution for the Linear / Slot 4 PSW LED — S4LD_4FT_80CRI_35K_600LMF from Mark Architectural Lighting, a Acuity Brands brand. This product line is published as 11 variants — typically different CCT and CRI combinations of the same luminaire optic. Use the variant selector above to switch between them.
You can use this fixture in CircadianLab to design lighting layouts and calculate melanopic equivalent lux (EML), illuminance in lux or foot-candles, and UGR glare ratings — all in your browser, free, with no signup required.
Note on photometric plots: All plots on this page treat the luminaire as a point source emitting from its photometric center, which is the standard convention for IES LM-63 data.
Disclaimer: Innerscene does not manufacture, sell, or distribute the Linear / Slot 4 PSW LED — S4LD_4FT_80CRI_35K_600LMF or any other Mark Architectural Lighting products. This page is provided for informational and lighting-design purposes only, using publicly available photometric data. For product inquiries, pricing, or availability, please contact Mark Architectural Lighting (Acuity Brands) directly.