Research

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 [...]

The Department of Energy has published the first evaluation report from a GATEWAY demonstration on NE Cully Boulevard, a residential collector road in Portland, OR. Six different types of roadway luminaires were installed in side-by-side groupings and evaluated for initial performance: three LED, one induction, one ceramic metal halide, and one baseline high-pressure sodium. In [...]

The U.S. Department of Energy has completed Series 15 of testing through the DOE Solid-State Lighting CALiPER program. A summary of the results is now available for download on the DOE SSL website here. Report 15 of testing analyzes the performance of a group of 10 LED floodlights that mirrors the broad range of conventional [...]

The U.S. Department of Energy (DOE) has published a report that looks at the direct and indirect material and process inputs to fabricate, ship, operate, and dispose of LED lamps, compared with incandescent lamps and compact fluorescent lamps (CFLs). LED Manufacturing and Performance is the second part of a larger DOE project to assess the [...]

by Jim Brodrick, U.S. Department of Energy Results of the latest round of CALiPER testing were released recently, and as usual they’re worth noting because they help provide an indication of the current state of the solid-state lighting market – its strengths, weaknesses, and nuances. The U.S. Department of Energy’s (DOE) CALiPER program supports testing [...]