LED

LD+A Research Matters: Studying chromaticity binning - what should we expect from today’s LED light sources?

Four table lamps being tested and used for chromaticity binning studies.
08/15/2019

Generally, people expect two light sources with the same rated color appearance to appear identical when installed in their homes and businesses. Obvious variation often leads to dissatisfaction, complaints and product returns.  To avoid these issues, it is important that light sources have sufficient chromatic consistency to ensure color matching for most people.  Currently, the lighting industry relies on binning for correlated color temperature (CCT) and Duv to address this issue.

Nonresidential Lighting & Electrical Power Distribution Guide for 2019 Building Energy Efficiency Standards

04/07/2020

The California Lighting Technology Center’s Nonresidential Lighting and Electrical Power Distribution Guide assists builders and lighting industry professionals in navigating the nonresidential lighting and electrical power distribution portions of California’s Building Energy Efficiency Standards (Title 24, Part 6 or Energy Code). The 2019 iteration of the Energy Code took effect on January 1, 2020. 

Residential Lighting Guide for 2019 Building Energy Efficiency Standards

03/25/2020

The California Lighting Technology Center’s Residential Lighting Guide assists builders and lighting industry professionals in navigating the residential lighting portion of California’s Building Energy Efficiency Standards (Title 24, Part 6 or Energy Code). The 2019 iteration of the Energy Code took effect on January 1, 2020. 

Laboratory Evaluation of DC Lighting Systems

Historically, power distribution has been dominated by Alternating-Current (AC) which significantly influenced the design of connected energy-consuming appliances.  With the emergence of electronics and digital controls as standard design elements in almost all appliance categories, the need for Direct-Current (DC) has emerged, even as it opposes traditional distribution practices.  This issue is typically resolved at the appliance level with AC-to-DC converters. 

Adaptive Lighting for Mexico's Urban Buildings

The Consortium for Energy Efficiency in Non-Residential Buildings (The Consortium), supported by the National Council for Science and Technology and Secretary of Energy in Mexico, is focused on reducing electricity demand in Mexico’s non-residential buildings through collaborative efforts with industry, government and universities.  Specifically, the Monterrey Institute of Technology and Higher Education, with assistance from UC Davis, is funded to implement an energy efficiency laboratory featuring lighting and air conditioning technologies for non-residential buildings.

Educational Video Series: 2016 Lighting Controls Technologies & Requirements

Lighting Controls
08/10/2017

The California Lighting Technology Center (CLTC) at the University of California Davis collaborated with the California Energy Commission to provide this educational video series in support of the 2016 Building Energy Efficiency Standards (Title 24).  Sensors and controls can achieve significant energy savings by automatically adjusting lighting based on time of day, available task needs, daylight, occupancy, and electricity supply or cost.

Integrated Building Control Retrofit Package for Commercial Applications

Lighted hallway corridor with window walls, facing the center of a courtyard.

The California Lighting Technology Center, in collaboration with the California Energy Commission, is conducting research to develop and evaluate technology that integrates automated controls for heating, ventilating and air conditioning (HVAC), electric lighting and dynamic fenestration systems. The integrated system is referred to as the Integrated Building Control Retrofit Package (IBCRP), as it is aimed for retrofit projects in existing commercial buildings.

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