Fred Davis Corporation Newsletter

Status on Residential Directional LED Fixtures

Residential LED fixtures have a crazy wide range of efficacy, far surpassing the 40% span we reported on for commercial fixtures in November’s post. The wide range exists because of the recent history of Energy Star. Despite still being the best program for residential fixtures, it hasn’t changed its efficacy requirements since 2015. Other program […] ...

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Status on Residential Directional LED Fixtures

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Residential LED fixtures have a crazy wide range of efficacy, far surpassing the 40% span we reported on for commercial fixtures in November’s post. The wide range exists because of the recent history of Energy Star. Despite still being the best program for residential fixtures, it hasn’t changed its efficacy requirements since 2015. Other program […] …

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Happy New Year from Fred Davis Corporation

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2019 brought our new blog, The Lightening Volt, replacing the occasional e-newsletter we produced for years. We hope you enjoyed the first post in our series on the status of LED fixtures, demonstrating a surprising spread in efficiency. We’ll continue that series into 2020. After that, we’ll keep sharing compelling posts on lighting that every […] …

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Commercial vs Residential Fixtures: What’s the difference?

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It’s a definitional mess discerning the difference between “residential” and “commercial” lighting fixtures. Everyone subjectively knows the difference between “residence” and “commerce”. But can one say that a product is one or the other? Is a sandwich “residential” or “commercial”? So it is with trying to categorize light fixtures as either “reside …

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Don’t Just “Go LED”: Status on Commercial LED fixtures

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LEDs are not all the same. The range of efficiency is surprisingly wide. We were talking recently to a colleague about lighting options for his office. He was shocked to learn that there were differences in efficiency. He thought “just going LED” was sufficient. It’s a widely-held misconception at this stage in the LED revolution. This is why, when we hear someone proudly proclaim “we went …

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Terms and Definitions: Efficacy vs Efficiency

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In our upcoming posts, we will survey the current status of LED fixtures across different categories. As you read, lighting terminology will be important. Most critical is the difference between lighting efficacy and lighting efficiency, two different measures of output over input. Efficacy: Efficacy is the ratio of light output (lumens) to energy input (watts). […] …

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How We Doin’?: Pinpointing Progress a Few Percent at a Time

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If you care about climate, then you care about carbon pollution. And if you care about carbon, then you care about energy consumption. We’re all trying hard to reduce energy consumption. But it is really difficult to discern the results: How much energy is being saved, across a region, over time? The experts at NEEP (Northeast Energy Efficiency Partnerships) have been carefully assessing this ques …

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Announcing Our Blog

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We are pleased to announce our new blog, The Lightening Volt. If that title sounds familiar to you, it’s because that was the title of the occasional e-newsletter we’ve produced for years. BUT we decided it’s time to turn that into a blog.

If you are a new visitor, welcome! Fred Davis Corporation is a leading independent wholesale distributor dealing exclusively with energy-efficient lighti …

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