Use this fixture in a lighting design
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.
Gotham Downlight / ICO4 Downlight — ICO4_27_25_AR_LSS_20D_CRI90
ICO4 27/25 AR LSS 20D
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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 Downlight / ICO4 Downlight — ICO4_27_25_AR_LSS_20D_CRI90 from Gotham, a Acuity Brands brand. This product line is published as 2 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 Downlight / ICO4 Downlight — ICO4_27_25_AR_LSS_20D_CRI90 or any other Gotham 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 Gotham (Acuity Brands) directly.