Our Publications

Adaptive HID Wall Packs at CSU Chico

Philips Day-Brite and CLTC partnered on this SPEED-sponsored project to demonstrate an adaptive high intensity discharge (HID) wall pack from Philips Day-Brite’s established NiteBrites product line. The product provides dynamic light levels to surrounding areas based on occupancy using a single HID lamp and fixture-integrated occupancy sensor. 

CLTC completes more than 100 demonstrations of energy-efficient lighting

CLTC — The California Lighting Technology Center (CLTC), a research, development, and demonstration facility at the University of California, Davis, has installed more than 100 demonstrations of energy-efficient lighting since the Center’s inception in 2004. The wide range of demonstrations has been installed at University of California, California State University, California Community College campuses, and state and federal buildings throughout California in an effort to prove energy-efficient technology and report the findings to the public through case studies.

Emerge Alliance Continues to Gain Support for DC Power Distribution

EMerge Alliance — The EMerge Alliance is an open industry association leading the rapid adoption of safe, low-voltage direct-current (DC) power distribution and use in commercial building interiors announced it has added 15 more companies to its coalition. Now more than 60-members strong, the Alliance continues to gain the support of building industry and technology leaders in a collaborative effort to bring greater energy efficiency and sustainability to new and existing facilities.

Bi-level Induction Parking Garage Luminaires at UC Davis

The California Energy Commission’s Public Interest Energy Research (PIER) Program through the California Lighting Technology Center funded development of a bi-level parking garage luminaire that integrates state-of-the-art induction sources and occupancy-based dimming controls.

Energy-efficient LED Downlights

Recent studies estimate more than 800 million recessed downlights are in operation in the United States, split nearly equally between residential and commercial applications, with about 83% still using incandescent lamps. Inexpensive compact fluorescent lamp (CFL) downlights are commercially available, but most of these units are not dimmable, which is a desired attribute for many downlight applications. Therefore, energy-saving CFLs often are overlooked in lieu of the functionality of incandescents.

Energy-efficient LED Downlights at the Bidwell Mansion Visitor Center

The Bidwell Mansion Visitor Center (BMVC) was retrofitted in two installments. The first phase focused on the foyer and restroom, where 16 LED recessed downlights were installed. In the foyer, 14 downlights with a 10" aperture that operated with two 13 W bi-pin CFL lamps and magnetic ballasts were replaced. In the bathroom, a 3' T12 fluorescent strip light was replaced. Before the retrofit, illuminance levels, at grade, varied from about 1 footcandle (fc) to 25 fc. Average maintained illuminance levels for the foyer and restroom were 14 fc and 9 fc.

Integrated Office Lighting System at the Department of Motor Vehicles in Sacramento, CA

The Department of Motor Vehicles (DMV) implemented the IOLS in a planned multiyear renovation of its 520,000-square-foot headquarters in Sacramento, CA. The original lighting goal was to provide more uniform task lighting and higher visual comfort. Original designs fell short of these goals. The IOLS, in contrast, met design objectives and increased energy savings. 

Integrated Office Lighting System at UC Office of the President

Six private offices and 44 open cubicle spaces on the ninth floor of the University of California Office of the President Franklin Building in Oakland, CA, received an IOLS retrofit in 2009. This site was selected because it provided a large, open office space, a high-occupant density, and expected long-term employee occupancy in the space.