R&D

MR-16 LED Replacement Lamps: Electrical Compatibility and Performance

05/01/2015

As light emitting diode (LED) MR16 lamps become more prevalent in the commercial market, both residential and commercial end‐users are considering these lamps as replacements for currently installed halogen incandescent MR16 sources. While the energy savings associated with LED lamp replacements is evident, the compatibility of LED MR16 lamps with existing electrical hardware is not. In one‐to‐one lamp retrofits, MR16 LED lamps often demonstrate negative performance characteristics such as visible flicker and audible humming.

Codes and Standards Enhancement—Quality Demonstration Program (CASE-Q DP)

CLTC researchers are developing a standard methodology for conducting field demonstrations to better inform energy codes and standards enhancement.

LD+A Research Matters: Increasing the Value of Field Demonstrations

11/01/2014

LD+A—Researchers in California are developing a standard methodology for conducting field demonstrations to better inform energy codes and standards.

Authors: Cori Jackson, Konstantinos Papamichael, and Michael Siminovitch

Searching for the Link between Light at Night and Health

12/04/2014

Join us for a talk from Professor Abraham Haim of the University of Haifa who has researched the link between light at night and health concerns including breast cancer, metabolic syndrome and obesity.

CLTC is hosting the free event, which was organized by Benya Burnett Consultancy.

5:30 p.m. to 7 p.m., Thursday, December 4
California Lighting Technology Center
633 Pena Drive
Davis, CA 95618

RVSP is requested here.

Codes and Standards Enhancement—Quality Demonstration Program

09/24/2014

The CASE-Q DP Program Manual contains the requirements and processes for future field demonstrations. It can be used by any team wishing to conduct a sound, thorough and well-documented technology demonstration. In addition to providing this resource, the CASE-Q DP directly supports identification, selection, installation and performance assessments of energy-efficient building technologies ready for current or near-term inclusion in California's Codes and Standards Enhancement (CASE) initiatives.

LD+A Research Matters: Shedding More Light on Occupancy

09/01/2014

LD+A – Multiple studies have demonstrated the significant energy savings that bi-level, occupancy-based lighting controls can achieve in outdoor applications. These controls maintain recommended illumination levels during occupied periods and automatically dim lights, reducing power by 50 percent or more, during vacant periods.

Lighting Control User Interface Standards

11/01/2010

IES Annual Conference 2010—Lighting control user interface elements are governed by few standards. This may lead to products that are unnecessarily confusing for building occupants, leading to a lost opportunity for energy savings. The problem may worsen as control capabilities rise
sharply with the advent of digital and networked systems.

Field Luminance Mapping of the Sky

11/01/2010

IES Annual Conference 2010—When sky luminance distributions are measured far from a laboratory facility, portable and inexpensive instruments are useful. High dynamic range (HDR) photography has become a practical method for sky luminance mapping. However, long exposure photography directed at the sun can cause severe damage to digital camera sensors. To avoid this problem, a system was designed that integrates an adjustable shading disk with an HDR camera.

LED Lamp Testing at UC Davis

04/18/2014

Since its establishment in 2003, the California Lighting Technology Center (CLTC) at UC Davis has conducted extended photometric and electrical testing of light sources. During the last 18 years, CLTC has been successful in establishing an array of testing facilities, some with unique capabilities, including complete photometric and electrical testing laboratories, and chambers for lifecycle testing under customized operational conditions.

UC Davis Is Powering Prosperity

UC Davis was honored with this year's Powering Prosperity award, which is sponsored by PG&E. The award recognizes UC Davis's contributions to the economic vitality of the Sacramento region and the university's leadership role fostering the research and development of strategies and policies, as well as products and services, that improve sustainability and energy efficiency.

California Lighting Technology Center