Research

The U.S. Department of Energy has completed Series 20 of testing through the DOE Solid-State Lighting CALiPER program, available here. Report 20 evaluates the independently tested photometric performance of 38 LED PAR38 lamps, with results showing significant improvement versus earlier CALiPER testing of similar products. All of the LED PAR38 lamps tested offer substantial energy [...]

Independent of country of residence, the 637 building/design industry practitioners responding to the IALD Certification Survey indicate the seven domains of professional practice researched by the Credentialing Task Force accurately reflect the practice of architectural lighting design (average rating 4.1 out of 5) and are important to the profession (average rating 4.66). The primary purpose [...]

In this brilliant TED Talk, Beau Lotto explores the phenomenon of optical illusions and how the human eye sees objects and reality.

Adolescents can be chronically sleep deprived because of their inability to fall asleep early in combination with fixed wakeup times on school days. According to the CDC, almost 70 percent of school children get insufficient sleep—less than 8 hours on school nights. This type of restricted sleep schedule has been linked with depression, behavior problems, [...]

A 2010 Oklahoma State study comparing LED with conventional lighting in dairies showed a 6% increase in milk production under LED. The question is why, which is uncertain. One theory is the LED is more directed, possibly resulting in more feeding. Another is higher hormone production. IOWA FARMER has the story here.

Individuals with Alzheimer’s disease and related dementias (ADRD) often sleep during the day and are awake at night. The situation can turn life-threatening if they leave their homes and wander around outside. This irregular sleep schedule and night wandering, and the consequent burden on their caretakers, is a primary reason individuals with ADRD are placed [...]

Eighty-five percent of building owners and operators globally depend on energy management to drive operational efficiency, according to the 2012 Johnson Controls Energy Efficiency Indicator, a global survey of 3,500 building owners and operators. This represents a 34-point increase in the last two years. Energy cost savings and financial incentives are leading this shift, but [...]

Strategies Unlimited has published a new report, LED Replacement Lamps: Market Analysis and Forecast – 2012, which covers the LED replacement lamp market (A-lamp, globe, PAR, MR16, candelabra, linear), an overview of replacement lamp technology, and other information. Click here to learn more.

LED technology holds significant promise for airfield lighting in the U.S, mainly in terms of the potential for longer operating lives and increased efficacy of LEDs compared to incandescent lamps, the most common light source on airport runways and taxiways today, according to a new report: Issues with Use of LED Airfield Lighting: ACRP Synthesis [...]