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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.

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HALO(Cooper Lighting Solutions)•Downlight•2 variants

HALO H870-870BA_28W-QT4_HIGHLAMP

H870-870BA

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Lumens
1,600lm
Peak Candela
744cd
Power
39W
Beam Angle
29°

Polar Plot (2D)

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Goniometer (3D)

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Beam Analysis

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Photometric Specifications

Total Luminous Flux1,600 lm
Peak Intensity744 cd
Input Power39 W
Beam Angle (50% peak)29°
Symmetryaxial
Lamp / Source(1) 28W/QT4 28 WATTS 1600 LUMENS
CatalogH870-870BA
Open in CircadianLabDownload IES FileIES file via cooperlighting.com

About this Photometric File

This page presents the IES photometric distribution for the H870-870BA_28W-QT4_HIGHLAMP from HALO, a Cooper Lighting Solutions 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 H870-870BA_28W-QT4_HIGHLAMP or any other HALO 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 HALO (Cooper Lighting Solutions) directly.

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