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.

Open in CircadianLab
Lithonia Lighting(Acuity Brands)•Generic Profile•2 variants

Lithonia Lighting GENERAL PURPOSE BUILDING MOUNTED LUMINAIRE, 250W HPS, CLEAR

TWH 250S FS

Select Variant

Lumens
12,423lm
Peak Candela
7,790cd
Beam Angle
65°

Polar Plot (2D)

Loading photometric data…

Goniometer (3D)

Loading photometric data…

Beam Analysis

Loading photometric data…

Photometric Specifications

Total Luminous Flux12,423 lm
Peak Intensity7,790 cd
Beam Angle (50% peak)65°
Symmetrybilateral
Lamp / SourceONE 250-WATT CLEAR E-18 HIGH PRESSURE SODIUM, HORIZONTAL POSITION.
CatalogTWH 250S FS
Open in CircadianLabDownload from SourceIES file via ieslibrary.com

About this Photometric File

This page presents the IES photometric distribution for the GENERAL PURPOSE BUILDING MOUNTED LUMINAIRE, 250W HPS, CLEAR from Lithonia Lighting, 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 GENERAL PURPOSE BUILDING MOUNTED LUMINAIRE, 250W HPS, CLEAR or any other Lithonia 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 Lithonia Lighting (Acuity Brands) directly.

← Browse the full IES fixture library in CircadianLab