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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
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• withdrawn,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) T
...