PS-10-18: IES Position on LED Product Lifetime Prediction

Issued October 9, 2018

IES LM-80 and TM-21 are powerful tools that allow the lighting community to evaluate, compare, and select reliable LED components. LED components are combined with luminaire housing, optics, and drive circuity to form a complete luminaire. The reliability of the complete luminaire depends on many failure mechanisms beyond the LED component level, including drive circuitry and any secondary optical components. Other testing standards focus on these degradation mechanisms; they should also be used for determining the complete luminaire lifetime.

Inconsistent LED product lifetime marketing claims made by some manufacturers have led to questions about the IES methods widely used to characterize luminous flux and color maintenance for the LED components within: ANSI/IES LM-80-15 (“LM-80”), IES Approved Method for Measuring Luminous Flux and Color Maintenance of LED Packages, Arrays and Modules, and IES TM-21-11 (“TM-21”), Projecting Long Term Lumen Maintenance of LED Light Sources. Very often these claims are based on violations of TM-21’s ‘6X rule’.

The gradual decline LED components exhibit motivated the IES to develop the LM-80 test method and the TM-21 modelling and projection method. The Testing Procedures Committee realized its models were limited in their ability to predict future performance. The Committee therefore limited projections to 6 times the duration of the collected LM-80 data. This limit ensures that projections don’t exceed the model’s statistical confidence levels.

For example, when TM-21 results are used correctly, projections using 10,000 hours of LM-80 data shall never exceed 60,000 hours. In this instance, a marketing claim of 100,000 hours to L70 would not be supported by IES standards. TM-21 Addendum B (which replaced Addendum A) explicitly disallows reporting of such projections. See Errata & Addenda.

Further, it is inaccurate to make marketing claims regarding the lifetime of an entire luminaire using only TM-21 projections, as this method only applies to the LED components within.

The IES does not support the use of marketing claims exceeding TM-21’s 6X extrapolation limit. Marketing claims leveraging values beyond this 6X limit are misleading and not supported by IES standards.

The IES does not support the use of LED lumen maintenance life as the sole metric for determining solid-state luminaire lifetimes.

EP Zoom Platinum Sponsor - $20,000

What’s in it for you?

  •    Sponsor 5 Students/Emerging Professionals and the EP Day presentation platform
  •    Visibility and awareness before breakout rooms and throughout the event
  •    Opportunity to present a live or prerecorded personal closing message (15 seconds-1 minute duration)
  •    Shout-outs throughout the event
  •    Recognition as an EP Program Sponsor on all event communication
  •    Recognition on the IES Annual Conference homepage
  •    Recognition on the IES Annual Conference Emerging Professional homepage

EP Sponsorship Opportunities

Sponsor students and emerging professionals to attend the virtual Annual Conference event or the in-person Street & Area Lighting Conference. Student and EP recipients selected by Emerging Professional Committee.

EP Breakout Room Sponsor - $8,000

What do you get?

  •    Sponsor breakout room for live engagement and networking during EP Day
  •    Opportunity to present a live or prerecorded personal welcome message (15 seconds-1 minute duration)
  •    Visibility and awareness at the start of the schedule
  •    Personalized zoom backgrounds for moderators
  •    Recognition as an EP Program Sponsor on all event communication
  •    Recognition on the IES Annual Conference homepage
  •    Recognition on the IES Annual Conference Emerging Professional homepage
  •    Opportunity to provide personalized swag to attendees and moderators

EP Game Sponsor - $5,000

What are the benefits?

  •    Sponsor live interactive game session(s) during EP Day
  •    Ability to use your personal game hosting platform for the game session (IES can provide platform if needed)
  •    Be a Game Co-Host
  •    Opportunity to provide personalized swag or selection of IES publications as prize options

1 X Event Sponsor - $5,000

What’s in it for you?

  •    Visibility and awareness before breakout rooms and throughout the event – graphic image of logo
  •    Opportunity to submit a prerecorded personal opening/closing message (15 seconds-1 minute duration)
  •    Shout-outs throughout the event
  •    Recognition as a Leadership Forum Sponsor on all event communication
  •    Recognition on the Leadership Forum homepage

6 X Breakout Room Sponsor - $1,000 – (1 for each of 6 Breakout Rooms)

What do you get?

  •    Visibility and awareness at the start of the schedule – [verbal announcement/thank you]
  •    Personalized Zoom background for moderators – [moderators must use if provided by sponsor]
  •    Recognition as a Leadership Forum Sponsor on all event communication
  •    Recognition on the Leadership Forum homepage

3 X Leadership Forum Kahoot Game Sponsor - $500

What are the benefits?

  •    Sponsor live interactive Kahoot game session(s) during LF Day
  •    Be a Game Co-Host (optional)
  •    Recognition as a Leadership Forum Sponsor on all event communication
  •    Recognition on the Leadership Forum homepage

1x Gold Sponsor- $25,000

  •    Recognition as a Gold Sponsor in a fourth (1/4) page placement for 2 months in LD+A magazine
  •    Recognition as Gold sponsor on event app and all event communication, excluding Registration and Daily Digest communications
  •    Full registration for two (2) to the Annual Conference
  •    Company logo and hyperlink placed on exhibitor page within event app

2x Keynote Sponsor- $10,000

  •    2-3 minute Opening
  •    Introduce keynote speaker
  •    Company logo and hyperlink placed on exhibitor page within event app

5x Virtual Break Sponsor - $6,000

  •    Provided graphic visible during break duration
  •    Recognition as Virtual Break sponsor on event app and all event communications, excluding Registration and Daily Digest communications
  •    Full Registration for one (1) to the Annual Conference

1x Opening Session Sponsor- $5,000

  •    90-second video prior to session start
  •    Company logo and hyperlink placed on exhibitor page within event app

1x Closing Session Sponsor- $5,000

  •    90-second video prior to session start
  •    Company logo and hyperlink placed on exhibitor page within event app

1x Society Update Sponsor - $5,000

  •    Recognition as Society Update sponsor throughout web
  •    Recognition as Society Update sponsor on event app and all event communication, excluding Registration and Daily Digest communications
  •    Full registration for one (1) to attend the 2021 Annual Conference
  •    90-second video prior to session start

1x Registration Sponsor - $5,000

  •    Visibility as sole sponsor on the registration page and in all registration focused communications
  •    Company logo and hyperlink placed on exhibitor page within event app

1x Daily Digest Sponsor - $5,000

  •    Visibility as sole sponsor in all Daily Digest focused communications
  •    Recognition on event webpage and communications as Daily Digest Sponsor

10x Event App Exhibitor Page Sponsor - $1,000

  •    Company logo and hyperlink placed on exhibitor page within event app