Lighting Research Center

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ASSIST: Alliance for Solid-State Illumination Systems and Technologies

ASSIST recommends... Parking Lot Lighting

ASSIST recommends...Parking Lot Lighting
Published January 2009; Revised January 2010

This volume of ASSIST recommends provides guidance about parking lot lighting, a growing market for LEDs.

This issue discusses a new recommendation for evaluating the performance of parking lot luminaires, following the concept of application efficacy.

January 2010 Revision: This revision adds new analyses and calculation methods for using the Luminaire System Application Efficacy (LSAE) metric to evaluate multiple luminaires per pole and multiple poles within a parking lot; and for correlating LSAE values to energy usage. The revision also includes information about trade-offs between optimizing the pole mounting height for a given luminaire and optimizing the LSAE value.

Volume 7, Issue 3: Recommendations for Evaluating Parking Lot Luminaires  PDF (PDF 1394K)


ASSIST's parking lot luminaire calculator performs all the calculations for you, following the metric described in Issue 3. Upload an IES file and enter your inputs to analyze the system application efficacy and overall cost of any parking lot luminaire.


Parking Lot Lighting with Improved Uniformity

See ASSIST recommends... Outdoor Lighting and ASSIST recommends... Street and Roadway Lighting for more outdoor lighting recommendations.


ASSIST and the Lighting Research Center would like to thank the following for their review and feedback during the development of this publication: Acuity Brands Lighting, Beta LED/Ruud Lighting, Cree, GE Lumination, HADCO/Genlyte, Lighting Science Group, Lumec, OSRAM Opto Semiconductors, and Philips Color Kinetics.


LRC study shows uniform lighting in parking lots provides better sense of security, 75% energy savings – Press Release (2015)

Press Release: ASSIST recommendation provides new evaluation metric for parking lot luminaires

Project Summary Sheet PDF 

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