Research Project Information

Research Project Summary Information

Enabling Testing & Evaluation of Soild State Lighting in NYS(ST10971)

Rensselaer Polytechnic Institute


Solid-state lighting has the potential to revolutionize the market for lighting products. The light-emitting diode (LED), one of the most promising solid-state lighting technologies, has several unique properties that make it an ideal source for several lighting applications. The U.S. DOE target for white LED light sources is 150 lm/W by the year 2012. Compare this with the incandescent lamp at 14–20 lm/W, which remains the most prevalent light source in use today and it is clear that solid-state lighting has the potential to reduce lighting energy use in many applications, by as much as 90%. LEDs have the potential to last over 50,000 hours and are also easily dimmable and tunable. Another advantage of solid-state light sources is that, unlike traditional light sources, they radiate little or no heat, infrared, or ultraviolet radiation. Finally, solid-state light sources contain no mercury or other known harmful compounds, making them an environmentally friendly and sustainable lighting technology. Nevertheless, because LEDs are still a new and rapidly advancing technology, careful steps must be taken to ensure that end users and lighting specifiers, as well as lighting system and luminaire developers, in New York State have the information they need to make informed decisions about how to select, apply, and develop this technology effectively.

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Project Description

The project will (1) maintain NYSERDA's position on the ASSIST advisory board; (2) develop new research methods for evaluating LED systems; (3) identify applications where it makes sense to use LEDs, conduct research to quantify performance issues unique to LED technologies, and develop a series of LED system application guidelines; and (4) educate and inform NYS manufacturers and ratepayers of the outcome by offering two registration spots in the biannual LED Lighting Institute,at a reduced rate to New York residents.


The ASSIST program develops and initiates research of common interest to its commercial and government partners. Developing standardized LED test procedures and guidelines for LED applications will provide end users and manufacturers with a common set of metrics to evaluate their installations and products, and will help manage the public’s expectations of LEDs’ performance. Providing this information to the public will help the LED technology phase into installations and applications where the technology offers clear advantages.

Project Results

Results include ASSIST publications recently completed in 2008 and 2009 include reports on heat transfer in recessed LED luminaires; considerations for successful LED applications; accelerated life test methods for LED drivers; application specific evaluation methods; performance metrics for lighting fixtures; and optimizing the performance of remote phosphor LEDs.


Rensselaer Polytechnic Institute
Research Adm & Finance, 4th Fl West Hall 110 8th Street
Troy, NY 12180

Principle Investigator

Nadarajah Narendran

Universities Involved

Rensselaer Polytechnic Institute


Project Type:

Research Study

Technologies Types:

Building Systems
Solid State

NYSERDA Contact Information

Marsha Walton


R&D - Buildings Research

Contract Details

Start Date: 1/11/2010
Project Status: Active
Contract Number: ST10971

Last Updated: 4/16/2012