06/01/2011

Editor's Letter

Behold the LED Light

 

What's the difference between a used car salesman and an LED lighting salesman?

The used car salesman knows when he's lying.

At last month's Lightfair International show, lighting professionals found astounding technology and applications; however, supplier claims about product performance are often taken with more than a grain of salt.

On display at Lightfair were LEDs with life ratings of 75,000 hours and beyond, higher lumen output, higher CRI and tighter color tolerances, controls with higher IQs, and new options for LED replacement lamps — not to mention some stunning visual effects in exterior and interior applications. Solid state components allow extraordinary control, as evidenced by greenhouse LED lighting that emits only the light spectrum that supports photosynthesis. Perhaps driven in part by the advances in LEDs, non-LED options are also making leaps in performance. Two examples on display were T8 fluorescent lamps with far longer life and replacement CFLs with a secondary halogen element that allows them to instantly provide full light output.

The wow factor is large, but ensuring that products perform as claimed is problematic. Light loss factors, color consistency, failure rate, dimming capability and quality of white light are factors that need reliable information from suppliers. And because the inherent properties of LEDs differ so much from those of other lighting types, developing appropriate specs for LED and non-LED options is not a simple matter of equal watts to watts. This is one area where you may not want to rely on LED salespeople alone to develop a comparable spec for your application.

Perhaps any technology developing at the speed of LEDs — so rapidly that the "next generation" seems to arrive in product cycles that turn in months rather than years — encounters such pains. New standards and ratings are helping. DOE's Lighting Facts program is developing its performance scale for commercial LEDs. A new color rendering index is being created for LEDs because the CRI scale rating does not work as well for LEDs as non-LEDs. Underwriters Laboratories is crafting guidelines to define levels of high-energy light that are safe for the human eye. New tests for determining LED life are also underway. In the meantime, a good warranty — from a supplier you can expect to stay in business — is important.

It's not exactly buyer beware, but it is buyer be alert. Still, the pace of LED and non-LED innovation is brilliant.

Chris Olson
Chief Content Director

 

 


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Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.

Add highly responsive multi-zone comfort to any building project, in any climate. Our CITY MULTI H2i R2- and Y-Series VRF systems give you flexibility to fit the needs of any building. Enjoy 100% heating capacity at 0°F outdoor ambient, and 85% heating capacity at -13°F outdoor ambient.  For more information, log on to www.mitsubishipro.com


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.

 

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