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Illuminating Engineering Society of North America (IES)

Design and produce effective light products and illuminated environments

The Illuminating Engineering Society of North America (IES) publishes standards for the lighting industry. These standards guide lighting professionals and others via recommendations for product designs, output and best practice. IES standards ensure you can:

  • Adopt proven illumination guidelines
  • Improve product performance
  • Design well-lit facilities

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Full Online Standards SolutionIndividual Standards
Multiple standardsMinimal standards
Frequent purchases ($3000+/year)Infrequent purchases
Standards access or budget management, organization-wideLess than 5 employees use standards
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Industry Success Stories

Follow the IHS Energy Blog

Apr 26

Open Diff: My Favorite Gear

There’s a 2002 Subaru WRX wagon in my driveway. All stock – 16-inch wheels, stock turbo and intercooler, no mods to speak of beyond a K&N air filter. Even in its semi-retirement, I drive the crap out of that car: I bought it new in 2001, and to date, it’s covered 206,000 miles

Apr 26

-86 Freezer Gas Charging

Hello I am vaccume both compressor.how much pressure put on both compressor 1st stage is 404a and 2nd stage 290 +508b. Because we put the pressure in system but hx temp not study

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