From the Laboratory to the California Marketplace: A New Generation of LED Lighting Solutions
December 23, 2021
Energy Research and Development (500)
Electric Program Investment Charge - EPIC
Michael Siminovitch, Philip von Erberich, Nicole Hathaway
Widespread adoption of light emitting diode (LED) lighting for general illumination is one of the most significant advances in buildingefficiency of the twenty-first century. LED manufacturers have historically focused on research and development to improve lighting efficacyand reduce costs often at the expense of product quality and feature optimization. This has led to consumer dissatisfaction for LED indoor lighting in both residential and commercial buildings.
To address this disconnect, the California Lighting Technology Center launched a four-year research program to design and develop novel, energy-efficient LED lighting with quality and performance features that better meet consumer expectations. To meet this need, product designs were based on two studies. The first was a series of consumer studies that evaluated quality, performance, and function through laboratory-based, immersive, product-characterization experiments; the second consisted ofalong-termevaluation ofcommercially available LED sources to determine if the products delivered performance over time.
Key research outcomes include:
Proposed changes to American National Standards Institute LED color bins that address consumer expectations for noticeable and acceptable color difference.
Documented consumer preferences for color fidelity.
Quantification of the impact of color fidelity on visual acuity.
Consumer preferences for lighting-product packaging.
These primary outcomes, in addition to many others, informedproduct specifications and designs as part of this research. Solutions include linear LED lamps, retrofit kits, spectrally optimizedluminaires, and corresponding lighting-control packages.