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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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This report is GSA Green Proving Ground M&V study that assesses the performance of Linear LED Retrofit products for fluorescent lighting troffers. The study evaluates describes energy efficiency, photometric performance, economic analysis, occupant satisfaction and recommendations for broad implementation within GSA facilities.
This report provides information about the evaluation of a field installation of a one-for-one Light Emitting Diode (LED) lamp replacement that uses the existing fluorescent ballast. The evaluation was part of a study conducted by Pacific Northwest National Laboratory (PNNL) for the Green Proving Ground program (GPG). The evaluation includes field-collected energy data, light-level data, and occupant and system installer survey responses. The report also provides recommendations based on the data collected during this field evaluation as well as other research-based sources, for applying this technology to other locations.
A recent failure of Galileo's magnetic recorder was identified as LED degradation. Annealing the culprit OP133s proved successful and the irreplaceable data was recovered. Test data and modeling results calibrate an understanding of this incident.
The purpose of this testing was to characterize the single event effects (SEE) susceptibility of the TLE4309 adjustable linear low dropout light emitting diode (LED) driver.
Video about CALiPER Report Series 21 on LED Linear Lamps and Troffer Lighting, featuring interviews with Tracy Beeson and Naomi Miller of Pacific Northwest National Laboratory.
Solid-state lighting program technology fact sheet that clarifies the issue of LED lighting safety for the human eye and takes a look at current standards for photobiological safety.
Solid-state lighting program technology fact sheet on energy efficiency of LEDs, characterizing the current state of the market and discussing package efficacy, luminaire efficacy, and application efficacy.
Solid-state lighting technology fact sheet providing guidance on the various factors to consider when deciding on an LED upgrade for a fluorescent troffer system.
DOE Solid-State Lighting program technology fact sheet that provides background on current science and considerations related to LED light and health.
DOE Solid-State Lighting program technology fact sheet that addresses key questions about color stability and color shift in LED lighting applications.
Fact sheet that introduces Municipal Solid-State Street Lighting Consortium, a group of municipalities, utilities, and energy efficiency organizations who are interested in making investments in LED street and area lighting.
EC-LEDS works with the government of Mexico to help meet its goals of reducing greenhouse gas emissions from the energy sector. The program targets specific, highly technical areas where Mexico has indicated the program can add value and make an impact.
This document provides guidance for retrofitting existing fluorescent troffers including the LED and associated control options available, the pro/cons and costs/benefits of each option, and agency specific requirements (where applicable).
A technology fact sheet that reviews the fundamentals regarding light and color, summarizing the most important color issues related to white-light LED systems.
A technology fact sheet that discusses the benefits and drawbacks of various LED downlight options, with examples of real installations from DOE case studies.
Considers the projected impacts of future LED lighting efficacy gains in advancing major national goals, as well as in strengthening the competitive positioning of U.S.-based manufacturers.
Summary of GATEWAY report evaluating a trial installation of tunable-white LED lighting systems in three classrooms in the Carrollton-Farmers Branch Independent School District in Carrollton, TX. The report provides valuable insights into the use of this technology in a real-world setting.
Summary of GATEWAY report evaluating a trial installation of tunable-white LED lighting systems in three classrooms in the Carrollton-Farmers Branch Independent School District in Carrollton, TX. The report provides valuable insights into the use of this technology in a real-world setting.