LED + SSL

I’m an admirer of Dave Irvine-Halliday, founder of the Light Up The World Foundation, and had the opportunity to hear him speak at LIGHTFAIR and more recently here in Calgary, where he teaches. The Foundation provides market-based lighting solutions to regions of the world without easy access to electricity typically in the form of solar-powered [...]

The Department of Energy recently published the evaluation report from a GATEWAY demonstration in New York City’s Central Park, conducted in collaboration with The Climate Group and the New York City Department of Transportation. LED post-top luminaires from five different manufacturers were installed along paved walking trails and evaluated against the metal halide luminaires that [...]

Summary of a research idea conceived at the Catalonia Institute for Energy Research, Lighting Group. This video explains the potential applications of a novel concept based on LEDs than uses a microprocessing unit to reproduce and read spectra in spaces. Ledmotive: brilliant innovation with LED technology from Josep Carreras on Vimeo.

The California Energy Commission (CEC) has published a voluntary quality specification for omnidirectional and directional LED replacement lamps intended to replace screwbase incandescent lamps in light fixtures other than colored lamps, light strips and rope lights, linear pin-based lamps and integrated light fixtures. Research conducted by the California Lighting Technology Center resulted in two conclusions. [...]

The U.S. Department of Energy recently completed Series 19 of testing through the DOE Solid-State Lighting CALiPER program. Report 19 reviews the independently tested performance of nine LED linear pendants and also evaluates a supplemental collection of 11 linear pendant products available in both an LED and fluorescent version. In general, the LED versions were [...]

University of Georgia researchers have fabricated an LED that emits warm white light using a single light emitting material (phosphor) with a single emitting center for illumination. “Right now, white LEDs are mainly used in flashlights and in automotive lamps, but they give off a bluish, cool light that people tend to dislike, especially in [...]

Guest post by Jim Brodrick, U.S. Department of Energy OLEDs don’t get as much publicity as LEDs, because they’re a good five to seven years behind their inorganic cousins in terms of commercial deployment. But they have considerable potential to save energy, as well as a number of other advantages. So where do we stand [...]

The U.S. Department of Energy has released a CALiPER 2012 Year in Review report that summarizes recent testing results and provides an overview of multi-year trends, available here. Since its inception in 2006, the CALiPER program has tested more than 500 products, revealing a variety of performance trends, holding manufacturers accountable for claims, and identifying [...]

Guest post by Jim Brodrick, U.S. Department of Energy Because they’re directional, reflector lamps are an important tool for both ambient and accent lighting, especially in residential and light commercial applications. One common type of reflector lamp is the PAR lamp, which is often used in demanding applications where color quality and visual appearance are [...]