Company Blog

Retrofitting Existing HID lamps to LED Technology

Posted by Frank Vaccariello on Tue, Jun 7, 2016 @ 07:06 AM

Retrofitting Existing Fixtures is a Challenge Because of the Different Technologies Used to Create Light

With the growing popularity of outdoor LED lighting, many cities and organizations want to take advantage of the benefits LEDs offer yet want to keep the look of their unique or historical fixture styles. Many are starting to research how that is possible.

While a quick “screw-in” retrofit LED light source may be convenient and low cost, it may not be the best long-term solution for the application. Because of the many technological differences between HID and LED lighting, certain precautions need to be met before considering an LED retrofit.

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Topics: LED Lighting, LED Retrofit

DesignLights Consortium: The DLC Proposed Technical Requirements 4.0

Posted by Frank Vaccariello on Thu, Mar 3, 2016 @ 07:03 AM

When deemed necessary, the DesignLights Consortium revises its requirements in order to maintain consistency with the continually changing technology in the lighting market and maintain energy savings and other requirements of DLC members and the lighting community as a whole. Revisions to the DLC requirements in 2014 and 2015 focused on restructuring the technical requirements table, establishing guidelines and requirements for the DLC Premium classification, and provided direction under new Specialty Use designations for products to be effectively qualified.  Over the past 3 years since efficacy levels have undergone revision under the DLC guidelines the solid-state lighting market has experienced major growth and the performance of products has improved significantly.

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Topics: LED, DLC

The DLC Premium Classification Tier + V3.1 Requirements

Posted by Christine Beltzer on Tue, Jan 5, 2016 @ 07:01 AM

DesignLights ConsortiumTM:

The DLC Premium Classification Tier & Transitioning to V3.1 Requirements

The DesignLights Consortium released Version 3.0 of their Technical Requirements in June of this year.  The DLC reduced the number of categories from 37 to 15 and recast many previous categories as "Primary Use" designations. The "Specialty" subcategory, in particular, paves the way for luminaires that meet basic requirements for niche applications.

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Topics: LED, DLC, DesignLights Consortium

DLC's Qualified Products List

Posted by Christine Beltzer on Tue, Dec 8, 2015 @ 07:12 AM

DesignLights ConsortiumTM:

Important Changes to the Qualified Product List

The DesignLights Consortium (DLC) is a voluntary certification program that enables manufacturers of LED lighting technology to standardize products for the utility sector in the United States and Canada.  Products must be tested by an accredited laboratory and the results submitted to the DLC for approval.  The majority of utility companies in this region require LED products to comply with DLC standards in four primary areas:

  • Distribution
  • Efficacy
  • Longevity/application stresses
  • Color rendering
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Topics: LED, DLC, DesignLights Consortium

Total Cost of Ownership in lighting - Part 2:

Posted by Nick Mangione on Tue, Nov 10, 2015 @ 07:11 AM

TCO in the Lighting Industry

Safety and economics in the design of lighting systems has become a main consideration recently in new and existing facilities. Lighting designers not only factor in the right light source for providing the quality of light needed for safe operation and reliability in a facility, but also the Total Cost of Ownership (TCO) or economic impact. The following are just some of the factors that can create limitations with traditional light sources:

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Topics: LED Lighting, LED TCO, LED

Total Cost of Ownership Part 1

Posted by Frank Vaccariello on Tue, Oct 20, 2015 @ 07:10 AM

The Importance of TCO Calcs

Total Cost of Ownership (TCO) is the sum of all direct and i ndirect expenses incurred throughout the entire lifecycle of owning or using certain large-scale assets. It is sometimes referred to as life cycle cost analysis. TCO factors in costs accumulated from purchase of the asset all the way to decommission. This typically includes costs for installing, deploying, operating, upgrading, building and maintaining the asset. This offers a more accurate basis for determining the value of an investment than the purchase price alone since TCO analysis includes the obvious costs and the “hidden” costs of ownership.
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Topics: LED total cost of ownership, LED Applications, LED

Illuminating Data Part 2: INTERPOLATING RESULTS OF TM-21 LED TESTS

Posted by Nick Mangione on Tue, Sep 22, 2015 @ 07:09 AM

Sometimes it seems that LEDs last forever. But even though they don’t “burn out” like other light sources, LEDs do degrade over time, eventually beyond useful light output which is typically recognized as 70% of initial luminous flux (L70).

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Topics: LM-79, Luminaires, LM-80, TM-21, LED Testing, LED Lighting, LED

Illuminating LED Data Part 1: TM-21, Extending LM-80

Posted by Nick Mangione on Tue, Sep 8, 2015 @ 08:09 AM

Measuring the useful life of an LED is not an exact science.  For one thing, such measures focus on the LED itself and not the supporting devices that may control its operation and affect its long-term usefulness. Because LEDs do not “burn out” like other light sources, the definition of when the useful life actually “ends” can also be somewhat arbitrary.  A review of the literature discloses titles such as “The Elusive Life of LEDs” and at least one reference to the LED marketplace as “The Wild Wild West,” in which product claims can easily fall short of product performance.

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Topics: TM-21, LED Testing, LED Lighting, LED, Extending LM-80

Understanding LM-80: Measuring Lumen Maintenance of LED Light Sources

Posted by Nick Mangione on Wed, Jul 22, 2015 @ 11:07 AM

Approved Method: Measuring the Lumen Maintenance of LED Light Sources

All light sources degrade over time but most just “burn out” before serious loss of light output. LEDs, on the other hand, do not burn out but continue to degrade – eventually beyond useful light output, which is typically recognized as 70% of initial luminous flux (L70).

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Topics: LM-80, TM-21, Lumen Degradation, Lumen Maintenance of LED, LED Light Sources

LM-79: The Basic Facts of LED-based SSL products

Posted by Nick Mangione on Wed, Jul 15, 2015 @ 08:07 AM

Approved Method: Electrical and Photometric Measurements of

Solid-State Lighting Products

As is widely known, IES LM-79 is the approved method of procedures and precautions when performing reproducible measurements of total luminous flux, electrical power, luminous intensity distribution and chromaticity of solid-state lighting (SSL) products for illumination purposes under standard conditions.

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Topics: LED total cost of ownership, LM-79, SSL Products, LED Lighting, LED