July 27, 2015 - LM-79 testing captures performance characteristics of EPCO’s solid-state LED luminaires. This testing provides a snapshot of our LED luminaires performance under specified operating conditions typically referred to as initial measurements. However LM-79 testing does not address or include lifetime luminaire ratings, changing... Read More

July 10, 2015 - The Illuminating Engineers Society (IES) uses luminaire. The United States Congress uses fixture. And it’s not uncommon to hear someone use lamp when pointing out a source of light. But which term is correct when referencing a lighting unit? While both identifiers are technically correct,luminaire... Read More

February 24, 2015 - In addition to overcoming early performance problems with heat, moisture and color, improvements in LED technology have significantly lowered the cost of LED luminaires and lamps. Not only are today’s LEDs more energy efficient as a light source compared to the 1980’s when they were used as equipment indicators, but also... Read More

January 30, 2015 - Because UL is a well-known testing laboratory that also develops standards and test procedures, people have a misconception that a UL standard is exclusively tested and certified by UL. This is not the case. While UL and other organizations (CSA, NSF, etc.) are authorized to write standards, the process is done in... Read More

December 4, 2014 - If you’re in the lighting business, you probably get asked every now and then whether you should turn the light off every time you leave the room. The answer depends on the type of lamp and how long you’ll be gone. Incandescent Lighting – Turn Off! Incandescent lights are the least efficient type of lighting we use... Read More

November 3, 2014 - One of the main benefits of LEDs is their very long life. But just how long do LEDs really last—50,000 hours or even 100,000 hours? What is the useful life of an LED? Over time, all electric light sources experience a decrease in the amount of light they emit— lumen depreciation. A very basic incandescent filament... Read More

August 13, 2014 - Let me take you back to January 1, 2014. This is the day that marked the end of a seven-year effort to outlaw the ordinary light bulb, thanks to the 2007 Energy Independent Security Act (EISA)* that raised minimum efficiency standards for traditional incandescent bulbs far beyond what the technology can manage. Simply put, it’... Read More

June 4, 2014 - When announcing a new EPCO lighting product, fluorescent or LED, the first question I receive from distributors and sales agency personnel is, “Is the fixture DLC approved?” The Design Lights Consortium (DLC) is a voluntary certification initiative for LED technology that requires lighting products to comply with minimum... Read More

April 3, 2013 - Solid-state LED lighting’s biggest asset is longevity—around 30,000–50,000 hours—three to five times longer than CFLs (10,000 hours) and about 30-50 times longer than that obsolete, inefficient technology known as incandescent (1,000 hours). The biggest obstacle standing between LEDs and building owners right now is expense.... Read More

July 10, 2012 - CFLs and LEDs have found the spotlight (and scrutiny) with the impending disappearance of incandescents. Nearly everyone finds a reason to complain about these newer lamps and stock up on incandescents. Bad experiences and rumors have caused prejudice and shortsightedness among facility managers and consumers. Here’s an update... Read More

February 6, 2012 - Fluorescent linear T12 lighting was the most widely used technology in commercial buildings until about 10 years ago. Now a declining technology, the rising popularity of its challengers T8 and T5 is due to better performance and energy efficiency—and most important for building owners and managers, savings in lighting costs... Read More