IEC 62717:2014/AMD2:2019

IEC 62717 ®
Edition 1.0 2019-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
A MENDMENT 2
AM ENDEMENT 2
LED modules for general lighting – Performance requirements

Modules de LED pour éclairage général – Exigences de performance

IEC 62717:2014-12/AMD2:2019-01(en-fr)

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IEC 62717 ®
Edition 1.0 2019-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
A MENDMENT 2
AM ENDEMENT 2
LED modules for general lighting – Performance requirements

Modules de LED pour éclairage général – Exigences de performance

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.99 ISBN 978-2-8322-6406-5

– 2 – IEC 62717:2014/AMD2:2019
© IEC 2019
FOREWORD
This amendment has been prepared by subcommittee 34A: Lamps, of IEC technical
committee 34: Lamps and related equipment.
The text of this amendment is based on the following documents:
FDIS Report on voting
34A/2121/FDIS 34A/2127/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
_____________
2 Normative references
Delete the reference to CIE 121:1996 and the reference to IES LM-80, added by
Amendment 1.:
Add the following new references:
CIE S 025/E:2015, Test Method for LED Lamps, LED Luminaires and LED Modules
ANSI/IES LM-80-15, Approved Method: Measuring Luminous Flux and Color Maintenance of
LED Packages, Arrays and Modules
3 Terms and definitions
Replace terminological entries 3.5, 3.7, 3.11, 3.12 and 3.13 with the following new entries:

© IEC 2019
3.5
flux degraded LED product
operating LED product that emits an amount of luminous flux less than the luminous flux
relating to the required luminous flux maintenance factor x
Note 1 to entry: For illustration of gradual depreciation mode, causing a flux degraded product, see Figure C.1.
Note 2 to entry: In general, LED products include LED lamps, LED modules and LED luminaires although this
term can be used with any LED based lighting product.
3.7
median useful life
L
x
length of operating time during which a total of 50 % (B ) of a population
of operating LED modules of the same type have flux degraded to the luminous flux
maintenance factor x
Note 1 to entry: The median useful life includes operating LED modules only.
Note 2 to entry: By convention, the expression “life of LED modules” without any modifiers is understood to mean
the median useful life.
3.11
combined failure value
CFV
percentage of LED modules or LED luminaires having either flux degraded or abruptly failed at
median useful life L
x
Note 1 to entry: CFV = 50 % + 0,5 × AFV.
EXAMPLE Given AFV = 15 %, then CFV = 50 % + 0,5 × 15 % = 57,5 %
Note 2 to entry: This note applies to the French language only.
3.12
combined life
M F
x y
length of time during which y % (F ) of a population of initially operating LED
y
lamps of the same type have either flux degraded to the luminous flux maintenance factor x or
abruptly failed
Note 1 to entry: The combined life (of LED lamps) includes operating and non-operating LED lamps.
3.13
median combined life
M
x
length of time during which 50 % (F ) of a population of initially operating
LED lamps of the same type have either flux degraded or abruptly failed
Note 1 to entry: The median combined life (of LED lamps) includes operating and non-operating LED lamps.
Add, at the end of Clause 3, the following new terminological entry:
3.22
useful life
L B
x y
length of time until at maximum a percentage y of a population of operating
LED modules of the same type have degraded to the luminous flux maintenance factor x
Note 1 to entry: The useful life includes operating LED modules only.
Note 2 to entry: Typically median useful life values L are provided (see definition 3.7).
x
– 4 – IEC 62717:2014/AMD2:2019
© IEC 2019
4 Marking
4.1 Mandatory marking
Table 1
Replace item c) and item m) as follows:
c) Rated median useful life L (h) and the related luminous flux
x
– x x
maintenance x
m) void – – –
Add, after table footnote 5 the following new table footnote 6:
6 The rated useful life L B (in hours) and the associated luminous flux maintenance factor x and percentage y
x y
can optionally be on the product datasheets, leaflets or website.
4.2 Additional marking
Replace, in the first and second paragraphs, "estimated life time" with "median useful life".
Table 2
Replace the existing title with the following new title:
Table 2 – LED module median useful life information
Replace, in the first column, second row, "Rated life time (h)" with "Median useful life L (h)",
x
as follows:
a a a
Median useful life L (h) XX XXX XX XXX XX XXX
x
6 Test conditions
6.1 General test conditions
Replace the fourth paragraph with the following new paragraph:
Testing duration is 25 % of rated median useful life with a maximum of 6 000 h.
In the fifth paragraph, added by Amendment 1, replace "IES LM-80" with "ANSI/IES LM-80-
15".
8 Light output
8.3 Luminous efficacy
Delete the content of Subclause 8.3 and replace with "Void".
9 Chromaticity coordinates, correlated colour temperature (CCT) and colour
rendering
9.3 Color rendering index (CRI)
Replace the existing text with the following new text:

© IEC 2019
The initial colour rendering index (CRI) of a LED module is measured.
Compliance:
For all tested LED modules in a sample the measured CRI shall not be lower than 3 points
from the rated CRI (see Table 1).
10 LED module life
10.2 Lumen maintenance
Replace Subclause 10.2 including its title, with the following new subclause:
10.2 Luminous flux maintenance
The rated luminous flux maintenance factor may vary depending on the application of the LED
module. Dedicated information on the chosen percentage should be provided by the
manufacturer.
NOTE 1 As the typical life of a LED module is (very) long, it is within the scope of this standard regarded
impractical and time consuming to measure the actual luminous flux reduction over life (e.g. L ). For that reason
this standard relies on test results to determine the expected lumen maintenance code of any LED module.
NOTE 2 The actual luminous flux maintenance of LED modules can differ considerably per type and per
manufacturer. It is not possible to express the luminous flux maintenance of all LEDs in simple mathematical
relations. A fast initial decrease in luminous flux does not automatically imply that a particular LED will not make its
rated life.
NOTE 3 Other methods providing more advanced insight in luminous flux depreciation over LED module life are
under consideration.
This standard has opted for “lumen maintenance codes” (see Figure 2) that cover the initial
decrease in luminous flux until an operational time as stated in 6.1. There are three codes
which define luminous flux maintenance in percent of the initial luminous flux (see Table 6).
Table 6 – Lumen maintenance code at an operational time as stated in 6.1
Luminous flux maintenance Code
%
≥ 90 9
≥ 80 8
≥ 70 7
The initial luminous flux shall be measured. The measurement is repeated at an operational
time as stated in 6.1. The initial luminous flux value is normalized to 100 %; it is used as the
first data point for determining LED module life. The measured luminous flux value at an
operational time as stated in 6.1 shall be expressed as maintained value (= percentage of the
initial value).
It is recommended to measure the luminous flux at 1 000 h intervals (expressed as a
percentage of the initial value) for a total equal to an operational time as stated in 6.1.
NOTE 4 This will give an additional insight as to the reliability of the measured values, but assigning a code does
not imply a prediction of achievable life time. LED modules with a higher code could be better or worse than LED
modules with a lower code.
For marking of the luminous flux maintenance factor x and the lumen maintenance codes, see
Table 1.
– 6 – IEC 62717:2014/AMD2:2019
© IEC 2019
Compliance at 25 % of rated median useful life L with a maximum of 6 000 h test duration:
x
For compliance of family members, refer to 6.2.3.
An individual LED module is considered as having passed the test when the following criteria
have been met.
1) The measured luminous flux value at 25 % of the rated median useful life (with a maximum
duration of 6 000 h) shall not be less than the initial luminous flux, multiplied by the rated
luminous flux maintenance factor x.
2) The calculated luminous flux maintenance (being the ratio of the measured maintained
and initial luminous flux) shall correspond with the “lumen maintenance code” as declared
by the manufacturer or responsible vendor.
Given a sample of n LED modules according to Table 7 being subjected to the 25 % of rated
median useful life test with a maximum of 6 000 h, it is deemed as having passed the test, if
at the end of the test, at least 90 % of the LED modules have passed.
(2)
(1)
Code 9
Code 8
Code 7
Luminous
flux 70
as % of initial
(3)
luminous flux
1 000 6 000 Rated life (h)
IEC
Key
(1) Initial luminous flux
(2) Measured luminous flux value at an operational time as stated in 6.1
(3) Lower limit line: claimed flux decrease over rated life L
NOTE The figure is given for illustrative purposes only.
Figure 2 – Luminous flux depreciation over test time
10.3 Endurance tests
10.3.3 Supply switching test
Replace the first paragraph with the following new text:
At test voltage, current or power, the LED module shall be switched on and off for 30 s each.
The cycling shall be repeated for a number equal to half the rated median useful life L in
x
hours (example: 10 000 cycles if rated median useful life is 20 000 h).

© IEC 2019
10.3.4 Accelerated operation in life test
Replace the third paragraph, starting with "At the end of this period…", with the following new
text:
At the end of this period and being stabilized at t , all the LED modules have an allowed
p,rated
decrease of light output at the end of the test of maximum 20 % compared to the initial value,
for at least 15 min.
Replace the note with with the following new note:
NOTE This test is to check for abrupt failures.
11 Verification
Table 7
Delete the line "8.3 Efficacy".

– 8 – IEC 62717:2014/AMD2:2019
© IEC 2019
Replace Annex A with the following new Annex A:
Annex A
(normative)
Method of measuring LED module characteristics
A.1 General
Unless otherwise specified in Clause A.1, for general conditions of photometric and
colorimetric measurements CIE S 025/E:2015, Clauses 4 and 5 apply.
Unless otherwise declared, LED modules do not require any ageing prior to testing. An ageing
period of up to 1 000 h may be specified by the manufacturer.
Unless otherwise specified, all measurements shall be made in a draught free room at a
relative humidity of 65 % maximum.
The temperature at the t -point shall be set at the recommended maximum LED module
p
operating temperature value, t for the measurements. If not accessible, the
p rated
manufacturer shall indicate a temperature monitoring point. If heat sinks are needed for the
correct operating of the LED module and the LED module does not have a heat sink, a
suitable temperature controlled heat sink may be used.
Interpolation techniques for photometric and colorimetric data at t may also be applied (see
p
also CIE S 025/E:2015, Annex C for information). Measurements may be performed at
different temperatures. For this, the relation between the two temperatures (t and a
p,rated
different t within the range of the manufacturer's provided data) and the measured
p
characteristic shall be established beforehand in an unambiguous manner by data provided by
the LED module manufacturer. In case of doubt the reference measurement is performed at
t . Depending on the type of control circuit the LED module manufacturer is using, the t
p,rated p
measurement shall be done at the most onerous condition of operation. The value of t
p,rated
shall be reported in Clause 4.
The manufacturer shall provide, on request, information on the method used to reproduce the
claimed characteristics declared at t -point.
p
For surface temperature measurement, equipment as specified in informative Annex H may be
used.
Independent LED modules that incorporate heat sinks are operated in free air and measured
at a temperature of 25 °C with a tolerance of ±1,2 °C.
Maintenance (10.2) and supply switching (10.3.3) operation shall be conducted in the
temperature interval (t – 5 K ≤ t ≤ t ) at a rated maximum ambient temperature
p_rated p p_rated
specified by the manufacturer, with a tolerance of ( K). In case there is no rated maximum
−5
ambient temperature, the ambient temperature range (20 °C ≤ t ≤ 25 °C) shall be used.
amb
For the supply switching test, the temperature requirement is applicable only during the ON
time. The value of t shall not be exceeded. An appropriate heat sink or additional
p,rated
heating may need to be applied to obtain the correct t value. For testing purposes, the t
p,rated p
-point shall be easily accessible. Even if the location is different for t and t , the value of t
p c c
shall not be exceeded.
© IEC 2019
A.2 Electrical characteristics
The test voltage, current or power shall be the rated voltage, current or power. In the case of
a range, measurements shall be carried out at the input value corresponding to the most
adverse effect to the temperature of the LED module.
A.3 Photometric characteristics
A.3.1 General
Description and requirements for photometric and colorimetric measurement equipment are
provided in CIE S 025/E:2015, 4.5.
A.3.2 Test voltage, current or power
For electrical test conditions and electrical equipment see CIE S 025/E:2015, 4.3.
A.3.3 Luminous flux
Luminous flux shall be measured in accordance with CIE S 025/E:2015, Clause 6.
A.3.4 Luminous intensity distribution
Luminous intensity distribution shall be measured in accordance with CIE S 025/E:2015,
Clause 6. For directional LED modules, beam angle and peak intensity are determined
according IEC TR 61341.
Luminous intensity distribution data shall be available for all variations of the LED module and
any optical attachments or accessories specified for use with the LED module.
Luminous intensity distribution data shall be provided for the LED module in accordance with
an established international or regional format.
NOTE Information about file formats can be found in IEC 62722-1:2014, Annex A, for informative (not normative)
purposes.
A.3.5 Colour characteristics
Colour quantities shall be measured in accordance with CIE S 025/E:2015, Clause 7.
The value of the colorimetric quantities of LED modules may be angularly dependent.
Spatially averaged chromaticity coordinates shall be used, unless otherwise specified by the
manufacturer.
– 10 – IEC 62717:2014/AMD2:2019
© IEC 2019
Annex B
B.2 Binning procedure of white colour LEDs
Delete the contents of Clause B.2 and replace with "Void".

© IEC 2019
Replace Annex C with the following new Annex C:
Annex C
(informative)
Explanation of recommended LED product lifetime metrics
C.1 General
Life of an individual LED module is the length of time during which an individual LED module
provides at least percentage x of the initial luminous flux, under standard test conditions. The
end of life of an individual LED module can be reached by either flux degradation or abrupt
failure (operating and inoperative LED modules).
NOTE For better readability, the term "LED product" is used and is considered as "LED based lighting product".
An abrupt failure of a LED module is a failure of the entire module and not necessarily a
failure of single LED packages. A failure of single LED packages in a LED module with
multiple packages usually contributes to overall gradual light output degradation of that LED
module. At the time the light output of the LED module becomes less than claimed percentage
x it is considered a flux degraded LED module. Figure C.1 gives an illustration of gradual and
abrupt failure modes, causing a flux degraded LED product and abrupt failure, in a luminaire
comprised of a single LED module.
New LED luminaire Gradual* Abrupt failure
(e.g with 1 LED module)
or
LED module Lumen Lumen Complete failure
with multiple depreciation* depreciation*
LED packages of LED packages and abrupt
failures of some
LED packages
Light output 100 % Light output 1 % to 99 % Light output 0 %
IEC
* Overall luminous flux depreciation includes also optical parts degradation of the LED
luminaire; gradual luminous flux depreciation below x percent leads to a flux degraded LED product.
Figure C.1 – Light output over life of a LED-based luminaire
comprised of a single LED module

– 12 – IEC 62717:2014/AMD2:2019
© IEC 2019
Life time of LED products can be far more than what practically can be verified with testing.
Furthermore the decrease in light output differs per manufacturer making general prediction
methods difficult. This standard has opted for lumen maintenance codes that cover the
decrease in luminous flux until an operational time as stated in 6.1. Due to this limited test
time the claimed life of a LED product cannot be confirmed nor rejected. The recommended
metrics for specifying LED product life is explained below and provides the background for the
pass/fail criterion of the lifetime test as in 10.2.
It is recommended for LED products to specify the luminous flux maintenance apart from the
abrupt failures in a standardised way giving more insight in light output behaviour.
C.2 Life time specification for gradual light output degradation
The length of time until a percentage y of a population of operating LED modules reaches
B life”) and
gradual light output degradation of a percentage x is called the useful life (or “L
x y
expressed in general as L B .
x y
LED products with light output lower than the required luminous flux maintenance factor x are
called flux degraded, because they produce less light but still operate. “L B life” is the age
x 10
at which 10 % of products have flux degraded. The age at which 50 % of the LED modules are
flux degraded, the “L B life”, is called "median useful life" and expressed as L . The
x 50 x
population includes operating LED modules only; non-operative modules are excluded.
Example: L B = L B is understood as the length of time during which 10 % (B ) of a
x y 70 10 10
population of operating LED modules of the same type have flux degraded to less than 70 %
of their initial luminous flux.
100 %
Projection curve individual LED product
φ rel
50 % percentile
Probability density function
x %
(e.g. 70 %
Lumen maintenance curve,
B expresses percentile gradual light output degradation
connecting the B points
(B is 50 % percentile or median)
0 2 4 6 L B L B L B
x 10 x 50 x 90
t (kh)
Operating hours
10 % percentile
Measured data
(time at which F(t) = 0,1)
IEC
Figure C.2 – Life time specification for gradual light output degradation
The shape of the probability density function pdf and the shape of the projection curve in
Figure C.2 are for illustration purposes only. The probability density function can be Weibull,
lognormal, exponential or normal depending on the measured data and selected projection
method.
In reliability terms, the failure function F(t) or cumulative distribution function CDF(t) can be
used to describe flux degraded LED products. F(t) or CDF(t) gives the failure percentile as
function of time. This is mathematically expressed as follows:

© IEC 2019
t
() () ()
F t = CDF t = pdf t dt
∫
By definition F(t→∞) is equal to 1 (100 %). In other words the total area below the pdf curve
from t = 0 to t →∞ is 1, meaning the whole population fails eventually.
Explanation of B:
Example: Considering a luminous flux maintenance factor x of 70 %, 10 % of the population
failed at time L B indicated by the grey area in Figure C.2, mathematically expressed as
70 10
follows:
LB
70 10
F L B CDF L B pdf t dt 0,1→ 10 %
( ) ( ) ()
70 10 70 10 70
∫
The reliability function equals R(t) = 1 − F(t), expressing reliability.
C.3 Lifetime specification for abrupt light output degradation
The length of time until a percentage y of a population of LED modules reaches abrupt light
output degradation of a percentage y is called the time to abrupt failure and expressed as
C .The time to abrupt failure (or “C life”) expresses the age at which a given percentage, y, of
y
LED modules have failed abruptly. See Figure C.3.
Example: C is understood as the length of time during which 10 % of the population of
initially operating LED modules of the same type fail to produce any luminous flux at all.
10 % failures
100 %
R(t)
pdf
50 %
R
abrupt
C C C t (kh)
10 50 90
Operating hours
IEC
Figure C.3 – Reliability curve R for abrupt light output degradation
abrupt
50 % failures
90 % failures
= = =
– 14 – IEC 62717:2014/AMD2:2019
© IEC 2019
C.4 Combined gradual and abrupt light output degradation
The length of time until a percentage y of a population of LED lamps reaches combined
gradual and abrupt light output degradation, meaning the LED lamps have either flux
degraded, no longer producing at least x % of their initial luminous flux, or abruptly failed, is
called the LED lamp life (or “M F life”) and expressed in general as M F .
x y x y
For example: M F = L F is understood as the length of time during which 10 % (F ) of a
x y 70 10 10
population of LED lamps of the same type have failed by either parametric or abrupt failure
modes (producing less than 70 % of their initial luminous flux or no luminous flux).
The “M F life”, is defined as the median LED lamp life and is called M .
x 50 x
The combined gradual and abrupt light output degradation can be constructed from the above
two specifications via reliability curves in three steps.
Step 1: Construct the reliability curve for flux degraded LED products due to gradual light
output degradation (see Figure C.4).
Step 2: Construct the reliability curve for abrupt light output degradation (see Figure C.3). The
reliability curve in Figure C.3 expresses also the survival of the LED products.
Step 3: Construct the reliability curve for combined degradation as the product of the gradual
light output degradation and abrupt light output degradation (see Figure C.5).
10 % degraded
100 %
R(t)
pdf
x
50 %
R at L
x
gradual
L B L B L B
t (kh)
x 10 x 50 x 90
Operating hours
IEC
Figure C.4 – Reliability curve R for gradual light output degradation
gradual
50 % degraded
90 % degraded
© IEC 2019
AFV (abrupt failure value)
100 %
R(t)
50 %
R (t)
abrupt
R (t)
gradual_x
R (t ) = R (t) × R (t)
gradual_x abrupt
total
L
x t (kh)
Operating hours
Median
useful life
IEC
Figure C.5 – Combined R and R degradation
gradual abrupt
C.5 Overview of LED lifetime metrics and related lighting product groups
Different lifetime metrics for lighting products are used in the industry to communicate with a
variety of end users. For ordinary persons using LED lamps, it is sufficient to give the median
life on the basis of combined abrupt failures and flux degraded products. Professionally
trained customers in the lighting market may require the estimated time to failure functions,
both abrupt and flux degraded (luminous flux maintenance), separately for their lighting
products. With the values from these failure and degradation functions they can make
calculations for lighting installations including maintenance cycle estimations.
Figure C.6 gives an overview of the different lifetime metrics, explained in this annex and the
related products. The upper frame A represents quantities from the failure and degradation
functions more of interest to professionals while the lower frame B gives the simple quantities
for the general communication to the market.
(CFV) Combined
failure value
– 16 – IEC 62717:2014/AMD2:2019
© IEC 2019
LED modules and
LED lamps
LED luminaires
Gradual light output Abrupt light output Combined gradual and abrupt
degradation degradation light output degradation
A:
General set of
named: named: named:
lifetime metrics
for providing
Useful life (L B ) LED lamp life (M F )
x y Time to abrupt failure (C ) x y
product data
y
Number of hours at x % light Number of hours at x % of light
Number of hours
including abrupt failures with
with y % of the population failed
at y % abrupt failures
y % of the population failed
at rated MUL named:
for y = 50 named: for y = 50 named:
Median useful life (L ) Median LED lamp life (M )
Abrupt failure value (AFV) x
x
Number of hours at x % light Number of hours at x % of
B:
% abrupt failures at L
x
light including abrupt failures
for 50 % of the population
Standard set of
for 50 % of the population
quantities for
communication
at rated MUL named:
to market
Combined failure value
(CFV)
% combined failures at L
x
IEC
Figure C.6 – Overview of LED lifetime metrics
C.6 Example of lifetime metric values
The introduction of the median useful life L (see 3.7) together with the abrupt failure value
x
(see 3.9) and median LED lamp life (see 3.13), provides a comprehensive set of definitions
for communicating lifetime related specifications for LED products.
When specifying different values, see Tables C.1, C.2 and C.3 below for examples of values.
Individual LED packages or LED dies within a LED product are not addressed.
In many LED products the lifetime metric values are interrelated. As the luminous flux
maintenance factor rating increases, the rated life and AFV values will generally tend to
decrease (see Table C.4).
NOTE LED modules with constant luminous flux are under consideration.
In some cases, the LED module useful life L B (see 3.22), is the preferred specification.
x y
Table C.5 shows examples of lifetime metric values for these cases.
Table C.1 – Examples of lifetime metric values
for luminous flux maintenance factor ratings
numbers in %
L
x
x 70 80 90
© IEC 2019
Table C.2 – Examples of lifetime metric values for abrupt failure
numbers in %
AFV
3 5 10
Table C.3 – Examples of lifetime metric values of x
for median LED lamp life (combined failures)
numbers in %
M
x
x 70 80 90
Table C.4 – Examples of lifetime metric values
x (%) 70 80 90
rated life 30 000 20 000 10 000
L (h)
x
AFV (%) 3 2 1,5
Table C.5 – Examples of metric values for LED module useful life L B
x y
x (%) 70 80
y (%) 50 10
Useful life
30 000 20 000
L B (h)
x y
Annex D
Replace the five dashed list items with the following new list items:
• rated CRI of e.g. 87
• rated CCT of 3 000 K
• initial spread of chromaticity coordinates within a 3-step MacAdam ellipse
• maintained spread of chromaticity coordinates at 25 % of rated median useful life L
x
(with a maximum duration of 6 000 h) within a 5-step MacAdam ellipse
• lumen maintenance code at 25 % of rated median useful life L (with a maximum duration
x
of 6 000 h), in this example: ≥ 90 % of the 0 h value

– 18 – IEC 62717:2014/AMD2:2019
© IEC 2019
Annex I
Replace Annex I, added by Amendment 1, with the following new Annex I:
Annex I
(informative)
Use of ANSI/IES LM-80-15 for luminous flux maintenance
and maintained chromaticity coordinates data
I.1 General
According to 9.1 (chromaticity coordinates), and 10.2 (luminous flux maintenance, luminous
flux), both initial and maintained values for the LED module are measured. In order to reduce
the test time for obtaining maintained values (at 25 % of rated life, maximum 6 000 h), data
from ANSI/IES LM-80-15 shall be used given that the conditions in Clause I.2 and the
compliance criteria in Clause I.3 are met.
If neither the LED module nor the LED package have been tested in accordance with
ANSI/IES LM-80-15, then the full testing time according to this standard shall be conducted.
I.2 Criteria for the use of ANSI/IES LM-80-15
I.2.1 LED package data used for LED modules
If data from an ANSI/IES LM-80-15 test report applied to a LED package is available, the test
conditions in 6.1 are applicable for LED modules with a test duration of 1 000 h.
For compliance criteria after 1 000 h testing, see Clause I.3.
I.2.2 LED module with ANSI/IES LM-80-15 data
If the LED module has been tested in accordance with ANSI/IES LM-80-15, the test duration
of 6.1 may be avoided.
The data for chromaticity and the luminous flux maintenance at 25 % of rated life, maximum
6 000 h from the ANSI/IES LM-80-15 test report, shall be taken and used to fulfil the
maintained value requirements of 9.1 and 10.2, respectively.
I.2.3 Boundary conditions
I.2.3.1 General
The combination of the selected maximum r.m.s. input current and maximum solder
temperature from the ANS/IES LM-80-15 report shall represent the worst case condition of the
LED module.
I.2.3.2 Temperature
All performance data of this standard are related to the reference temperature t on the
p,rated
LED module. t is measured at the reference location t -point on the LED module,
p,rated p
defined by the manufacturer.
With the LED module operating at its own t , the LED package case temperature, T , as
p,rated s
defined by ANS//IES LM-80-15, shall be measured. The highest measured value of T , inside
s
© IEC 2019
the LED module, shall not exceed the limit temperature T taken from the ANSI/IES LM-80-15
s
report.
In the case of a LED module family according to Table 4, the T temperature measurement
s
shall be performed with the LED module configuration that results in the highest T
s
temperature.
I.2.3.3 LED package input current
The maximum r.m.s. input current of the LED package in the LED module shall not exceed the
r.m.s. input current that was tested as a part of the ANSI/IES LM-80-15 test.
Where ANSI/IES LM-80-15 is used for achieving luminous flux maintenance and maintained
chromaticity coordinates data, any controlgear control circuits for automated compensation of
the light output degradation over time shall be disabled.
I.3 Compliance criteria
I.3.1 Chromaticity coordinates
LED modules evaluated according to 9.1 with a maintained test duration as specified in I.2.1
shall meet the initial colour variation category as declared by the manufacturer or responsible
vendor according to Table 5.
I.3.2 Luminous flux maintenance factor
LED modules evaluated according to 10.2 with a maintained test duration as specified in I.2.1
shall meet the lumen maintenance code as declared by the manufacturer or responsible
vendor according to Table 6.
Bibliography
Replace the reference to IEC 62722-1 and its footnote with the following new reference:
IEC 62722-1:2014, Luminaire performance – Part 1: General requirements

___________
– 20 – IEC 62717:2014/AMD2:2019
© IEC 2019
AVANT-PROPOS
Le présent amendement a été établi par le sous-comité 34A: Lampes, du comité d'études 34
de l'IEC: Lampes et équipements associés.
Le texte de cet amendement est issu des documents suivants:
FDIS Rapport de vote
34A/2121/FDIS 34A/2127/RVD
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à l'approbation de cet amendement.
Le comité a décidé que le contenu de cet amendement et de la publication de base ne sera
pas modifié avant la date de stabilité indiquée sur le site web de l'IEC sous
"http://webstore.iec.ch" dans les données relatives à la publication recherchée. A cette date,
la publication sera
• reconduite,
• supprimée,
• remplacée par une édition révisée, ou
• amendée.
IMPORTANT – Le logo "colour inside" qui se trouve sur la page de couverture de
cette publication indique qu'elle contient des couleurs qui sont considérées comme
utiles à une bonne compréhension de son contenu. Les utilisateurs devraient, par
conséquent, imprimer cette publication en utilisant une imprimante couleur.

_____________
2 Références normatives
Supprimer la référence à la CEI 121 et à l'IES LM-80, ajoutée par l'Amendement 1.
Ajouter les nouvelles références suivantes:
CIE S 025/E:2015, Test Method for LED Lamps, LED Luminaires and LED Modules
(disponible en anglais seulement)
ANSI/IES LM-80-15, Approved Method: Measuring Luminous Flux and Color Maintenance of
LED Packages, Arrays and Modules (disponible en anglais seulement)
3 Termes et définitions
Remplacer les articles terminologiques 3.5, 3.7, 3.11, 3.12 et 3.13 par les articles suivants:

© IEC 2019
3.5
produit à LED à flux lumineux dégradé
produit à LED opérationnel émettant une quantité de flux lumineux inférieure au flux lumineux
correspondant au facteur de maintenance du flux lumineux exigé x
Note 1 à l'article: Pour consulter une représentation du mode de dépréciation progressive qui cause une
dégradation du flux lumineux émis par le produit, voir la Figure C.1.
Note 2 à l'article: En général, le terme "produits à LED" désigne les lampes à LED, les modules de LED et les
luminaires à LED, mais il peut également être utilisé pour tout produit d'éclairage à base de LED.
3.7
durée de vie utile médiane
L
x
durée de fonctionnement à l'issue de laquelle 50 % (B ) d'une
population de modules de LED opérationnels de même type présentent un flux lumineux
dégradé par rapport au facteur de maintenance du flux lumineux x
Note 1 à l'article: La durée de vie utile médiane inclut uniquement les modules de LED opérationnels.
Note 2 à l'article: Par convention, l'expression "durée de vie des modules de LED" utilisée seule désigne la durée
de vie utile médiane des modules de LED.
3.11
valeur de défaillance combinée
CFV
pourcentage de modules de LED ou de lampes à LED dont le flux lumineux s'est dégradé ou
qui ont connu une défaillance brusque à la fin de leur durée de vie utile médiane L
x
Note 1 à l'article: CFV = 50 % + 0,5 × AFV.
EXEMPLE Si AFV = 15 %, alors CFV = 50 % + 0,5 × 15 % = 57,5 %.
Note 2 à l'article: L'abréviation "CFV" est dérivée du terme anglais développé correspondant "combined failure
value".
3.12
durée de vie combinée
M F
x y
durée à l'issue de laquelle un pourcentage y (F ) d'une population de
y
lampes à LED initialement opérationnelles de même type présentent un flux lumineux dégradé
par rapport au facteur de maintenance du flux lumineux x ou une défaillance brusque
Note 1 à l'article: La durée de vie combinée (des lampes à LED) inclut les lampes à LED opérationnelles et non
opérationnelles.
3.13
durée de vie combinée médiane
M
x
durée à l'issue de laquelle 50 % (F ) d'une population de lampes à LED
initialement opérationnelles de même type présentent un flux lumineux dégradé ou une
défaillance brusque
Note 1 à l'article: La durée de vie combinée médiane (des lampes à LED) inclut les lampes à LED opérationnelles
et non opérationnelles.
Ajouter, à la fin de l'Article 3, le nouvel article terminologique suivant:
3.22
durée de vie utile
L B
x y
durée maximale à l'issue de laquelle un pourcentage y d'une
population de modules de LED opérationnels de même type présentent un flux lumineux
dégradé par rapport au facteur de maintenance du flux lumineux x

– 22 – IEC 62717:2014/AMD2:2019
© IEC 2019
Note 1 à l'article: La durée de vie utile inclut uniquement les modules de LED opérationnels.
Note 2 à l'article: Généralement, des valeurs de durée de vie utile médiane L sont fournies (voir définition 3.7).
x
4 Marquage
4.1 Marquage obligatoire
Tableau 1
Remplacer les éléments c) et m) comme suit:
c) Durée de vie utile médiane assignée L (en h) et facteur de
x
– x x
maintenance du flux lumineux associée x
m) Nul – – –
Ajouter, après la note de bas de tableau 5, la note de bas de tableau 6 suivante:
6 La durée de vie utile assignée L B (en heures), le facteur de maintenance du flux lumineux associé x et le
x y
pourcentage y peuvent, à titre facultatif, être indiqués sur les fiches techniques, les notices ou le site web du
produit.
4.2 Marquage additionnel
Remplacer, aux premier et second alinéas "vie estimée" par "vie utile médiane".
Tableau 2
Remplacer le titre par le nouveau titre suivant:
Tableau 2 – Informations sur la durée de vie utile médiane du module de LED
Remplacer, dans la première colonne et deuxième rangée, "Durée de vie assignée (h)" par
"Durée de vie utile médiane L (h)", comme suit:
x
a a a
Durée de vie utile médiane L (h) XX XXX XX XXX XX XXX
x
6 Conditions d'essai
6.1 Conditions générales d'essai
Remplacer le quatrième alinéa par l'alinéa suivant:
La durée des essais correspond à 25 % de la durée de vie utile médiane, jusqu'à un
maximum de 6 000 h.
Au cinquième alinéa, ajouté par l'Amendement 1, remplacer "IES LM-80" par "ANSI/IES LM-
80-15".
8 Rendement lumineux normalisé
8.3 Efficacité lumineuse
Supprimer le contenu du Paragraphe 8.3 et remplacer par "Vide".

IEC 62717:2014/AM
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