Although the national economic recovery is now two and a half years old, construction spending has continued to contract. A multitude of factors prevented a recovery for this beleaguered industry in 2011. Lenders that have been extremely reticent to finance construction projects, budget shortfalls at all levels of government, the ripple effect of overbuilding, depletion […]
Designing LED replacement lamps that are compatible with residential dimmers is complex given the diversity in product performance, creating a challenge for manufacturers to design lamps compatibel with a wide range of dimmers. On behalf of ASSIST, the Lighting Research Center investigated dimming performance of a range of LED replacement lamps, CFLs and incandescent lamps […]
by Jim Brodrick, Department of Energy As more and more LED lighting products have come onto the market, one issue that has generated considerable confusion is dimmability. As discrete devices, LEDs are fully dimmable, and as a result the technology has long been touted as being more suitable for dimming than other lighting technologies. Many […]
In July 2011, the Department of Energy recognized the ASHRAE/IES 90.1-2007 standard as the new national energy standard, superseding the 2004 version. In a bold move, on October 19, 2011, DOE recognized the 2010 version of 90.1 as the new national energy standard. By October 18, 2013, all states in the United States must put […]
Consulting-Specifying Engineer has published an article by Brian Baumgartle, PE, LC, LEED AP of CMTA Inc. about lighting and control changes in the ASHRAE/IES 90.1-2010 energy standard, recently recognized by the Department of Energy as the national energy standard effective October 2013. Check it out here.
Last month at LightingControlsAssociation.org, we published an article about how to establish daylight zones in sidelighted (windowed) building spaces. We looked at an industry rule of thumb and then how the latest generation of energy codes and standards address it. In review, when designing an energy-saving daylight harvesting control system, a critical decision is to […]
When designing an energy-saving daylight harvesting control system, a critical decision is to establish lighting control zones, identifying lighting loads to be separately controlled. Before this decision can be made, however, we must first determine the daylight zones. A daylight zone, also called the daylight area (expressed in square feet), is defined by the ASHRAE/IES […]
As demand for lighting controls continues to grow, advanced solutions are becoming increasingly specified while also becoming increasingly sophisticated. This increasing sophistication translates to greater owner benefit but can also pose greater risk of design and installation mistakes. In a perfect world, designers create clear and detailed lighting control requirements that are easily installed by […]
Plasma lighting is a new generation of efficient lighting suitable for high-intensity applications such as parking lot, high-bay warehouse, streetlights, billboard and garage applications. The basic technology consists of a driver that emits radio waves to create an electric field around the source, which converts its contents into a plasma state that generates intense white light. The result is a light source about the size of a tic-tac that produces up to 23,000 initial lumens.
Craig DiLouie of the Lighting Controls Association recently talked to Randy Reid, VP marketing for Luxim, about the control aspects of this interesting and novel lighting technology. Click the below link to see the interview.
The Lighting Controls Association is pleased to announce that it has updated EE103: Fluorescent Dimming, a popular offering in the Association’s Education Express series of online distance education courses about lighting controls. The new course, authored by Craig DiLouie, principal of ZING Communications, Inc. and LCA’s Education Director, is divided into two sections: Dimming Control, and Fluorescent Dimming Ballasts. The first section, Dimming Control, provides an in-depth introduction to dimming, including popular dimming strategies, methods, controls, human perception and response, and how different light sources behave while dimmed. The second section, Fluorescent Dimming Ballasts, covers technology and application issues such as dimming methods and lamp-ballast interactions.