Bookstore

Announcements

enLIGHTen: IES International Year of Light Photo Contest 2015
In celebration of 2015 as the International Year of Light as proclaimed by UNESCO, the Emerging Professionals of IES (Illuminating Engineering Society) are giving you a reason to share your love for lighting for the next 6 months.
Click here for more information >

The Richard Kelly Grant
2015 Call For Entries - Grant proposals must be submitted by June 30, 2015.
Click here for more information >



2015 IES Street and Area Lighting Conference >
October 4-7, 2015 | Savannah, GA
Diagonal stripes
IES Shop >> Approved Method: Measuring Lumen Maintenance of LED Light Sources* + Addendum A Cart Items: 0  Total: $0.00

May 27, 2015
Search Products

Departments
  • Educational Material
  • Recommended Practices and ANSI Standards
  • Lighting Energy Management
  • Design Guides
  • Guidelines
  • Measurement Testing & Calculation Guides
  • Technical Memoranda
  • Lighting Publication Packages
  • Other IES Publications
  • LD+A
  • Lighting Books
  • Approved Method: Measuring Lumen Maintenance of LED Light Sources* + Addendum A
    Approved Method: Measuring Lumen Maintenance of LED Light Sources* + Addendum A
    Click To Enlarge
    *LIGHTFAIR 2009 Judges Citation Award recipient
     
    2008 - 7 Pages
    8 1/2 x 11 Softcover
    ISBN: 978-0-87995-227-3
    LM-80-08

    Product ID: LM-80-08
    Price: $25.00
    Member Price: $17.50
    Product Detailed Description

    The purpose of LM-80-08 is to allow a reliable comparison of test results among laboratories by establishing uniform test methods.  It addresses the measurement of lumen maintenance testing for LED light sources including LED packages, arrays and modules only. It does not provide guidance or recommendations regarding prediction estimations or extrapolations for lumen maintenance beyond the limits of the lumen maintenances determined from actual measurements.

    Contents: Definitions/Ambient Physical Conditions/Electrical and Thermal Conditions/Test and Measurement Procedures/Lumen Maintenance Testing Method for LED Sight Sources/Test Report

    Also of interest: LM-79-08 Approved Method: Photometric Measurements of Solid State Lighting Products

    Addendum A for LM-80-08 IES Approved Method: Measuring Lumen Maintenance of LED Light Sources

     


    Order Status   |    Contact Us
    bottom shadow