Regulation No. 128-00

Name:Regulation No. 128-00
Description:LED Light Sources for Use in Approved Lamp Units.
Official Title:Uniform Provisions Concerning the Approval of: Light Emitting Diode (LED) Light Sources for Use in Approved Lamp Units on Power-driven Vehicles and their Trailers.
Country:ECE - United Nations
Date of Issue:2013-01-08
Amendment Level:00 Series, Supplement 6
Number of Pages:53
Vehicle Types:Agricultural Tractor, Bus, Car, Component, Heavy Truck, Light Truck, Motorcycle, Trailer
Subject Categories:Lighting and Light Signalling Equipment
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Keywords:

light, led, source, luminous, approval, sources, intensity, table, sheet, test, annex, flux, regulation, reference, type, axis, production, requirements, figure, distribution, characteristics, data, area, plane, maximum, emitting, function, category, values, electrical, measurement, minimum, relevant, normalized, defined, standard, voltage, categories, paragraph, dimensions, intended, mark, manufacturer, results, approved, emitted, force, measured, major, date

Text Extract:

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E/ECE/324
E/ECE/TRANS/505
July 26, 2017
) Rev.2/Add.127/Amend.6
STATUS OF UNITED NATIONS REGULATION
ECE 128-00
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
LIGHT EMITTING DIODE (LED) LIGHT SOURCES FOR USE IN APPROVED
LAMPS ON POWER-DRIVEN VEHICLES AND THEIR TRAILERS
Incorporating:
00 series of amendments
Date of Entry into Force: 17.11.12
Supplement 1 to the 00 series of amendments
Date of Entry into Force: 03.11.13
Supplement 2 to the 00 series of amendments
Date of Entry into Force: 10.06.14
Supplement 3 to the 00 series of amendments
Date of Entry into Force: 15.06.15
Supplement 4 to the 00 series of amendments
Date of Entry into Force: 08.10.15
Supplement 5 to the 00 series of amendments
Date of Entry into Force: 08.10.16
Supplement 6 to the 00 series of amendments
Date of Entry into Force: 22.06.17

REGULATION
1. Scope
REGULATION NO. 128-00
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF LIGHT EMITTING
DIODE (LED) LIGHT SOURCES FOR USE IN APPROVED LAMPS ON
POWER-DRIVEN VEHICLES AND THEIR TRAILERS
2. Administrative provisions
3. Technical requirements
4. Conformity of production
5. Penalties for non-conformity of production
6. Production definitively discontinued
CONTENTS
7. Names and addresses of Technical Services responsible for conducting approval tests, and of
Type Approval Authorities
ANNEXES
Annex 1
Annex 2
Annex 3
Annex 4
Annex 5
Annex 6
Annex 7
Annex 8
Sheets for LED light sources
Communication
Example of the arrangement of the approval mark
Method of measurement of electrical and photometrical characteristics
Minimum requirements for quality procedures by the manufacturer
Sampling and compliance levels for manufacturer test records
Minimum requirements for spot checks by the Type Approval Authority
Compliance approved by spot check

2.2.3. In the case of a type of LED light sources differing only by the trade name or mark from a
type that has already been approved it shall be sufficient to submit:
2.2.3.1. A declaration by the manufacturer that the type submitted
(a)
(b)
Is identical with (except in the trade name or mark), and
Has been produced by the same manufacturer as the type already approved, the
latter being identified by its approval code.
2.2.3.2. Two samples bearing the new trade name or mark.
2.2.4. The competent authority shall verify the existence of satisfactory arrangements for ensuring
effective control of the conformity of production before type approval is granted.
2.3. Inscriptions
2.3.1. LED light sources submitted for approval shall bear on the cap:
2.3.1.1. The trade name or mark of the applicant;
2.3.1.2. The rated voltage;
2.3.1.3. The designation of the relevant category;
2.3.1.4. A space of sufficient size to accommodate the approval mark.
2.3.2. The space mentioned in Paragraph 2.3.1.4. above shall be indicated in the drawings
accompanying the application for approval.
2.3.3. Inscriptions other than those covered by Paragraphs 2.3.1. and 2.4.4. may be affixed, on the
condition that they do not adversely affect the luminous characteristics.
2.4. Approval
2.4.1. If all samples of a type of LED light source which are submitted in pursuance of
Paragraphs 2.2.2.3. or 2.2.3.2. above meet the requirements of this Regulation, approval
shall be granted.
2.4.2. An approval code shall be assigned to each type approved. Its first character shall indicate
the series of amendments at the time of issue of the approval. This will be followed by an
identification code comprising not more than three characters. Only the following Arabic
numerals and capital letters shall be used:
"0 1 2 3 4 5 6 7 8 9 A B C D E F G H J K L M N P R S T U V W X Y Z".
The same Contracting Party may not assign the same code to another type of LED light
sources.

3.1.6. Reference plane: a plane defined with reference to the cap perpendicular to the reference
axis and to which certain dimensions of the LED light sources are referred.
3.1.7. Light centre: a point on the reference axis at a defined distance from the reference plane
that represents the nominal origin of the visible radiation emitted.
3.1.8. Light centre length: the distance between the reference plane and the light centre
3.1.9. Viewing axis on to the LED light source: an axis through the light centre at defined polar and
azimuthal angle used to characterize photometrical properties of the LED light source.
3.1.10. Apparent light emitting area: area that contains the (apparent) element of visible radiation
when observed under a certain viewing axis. The apparent light emitting area is defined in a
plane that contains the light centre and that is perpendicular to the corresponding viewing
axis.
3.1.11. Normalized luminous intensity: luminous intensity divided by the luminous flux of the light
source in order to characterize the angular radiation pattern of the LED light source.
3.1.12. Cumulative luminous flux: luminous flux emitted by the light source under operating
conditions, within a cone enclosing the specified solid angle and centred on the reference
axis.
3.1.13. Light emitting diode (LED) light source: a light source where the element for visible radiation
is one or more solid state junctions producing injection-luminescence and/or fluorescence.
3.2. General Specifications
3.2.1. Each sample submitted shall conform to the relevant specifications of this Regulation.
3.2.2. LED light sources shall be so designed as to be and to remain in good working order when
in normal use. They shall moreover exhibit no fault in design or manufacture.
3.2.3. LED light sources shall exhibit no scores or spots on their optical surfaces which might
impair their efficiency and their optical performance.
3.2.4. LED light sources shall be equipped with standard caps complying with the cap data sheets
of IEC Publication 60061 as specified on the individual data sheets of Annex 1.
3.2.5. The cap shall be strong and firmly secured to the rest of the LED light source.
3.2.6. To ascertain whether LED light sources conform to the requirements of Paragraphs 3.2.3. to
3.2.5. above, a visual inspection, a dimension check and, where necessary, a trial fitting into
the holder as specified in IEC Publication 60061 shall be carried out.
3.2.7. The solid state junction(s) and possibly one or more elements for fluorescence-based
conversion shall be the only element(s) of the LED light source that generate(s) and emit(s)
light when energized.

3.7.3. Moreover, in the case of LED light sources emitting white light, the minimum red content of
the light shall be such that:
k
=


E
E
( λ) V ( λ)
( λ) V ( λ)


≥ 0.05
where:
E (λ) (unit: W)
V(λ) (unit: 1)
λ (unit: nm)
is the spectral distribution of the irradiance;
is the spectral luminous efficiency;
is the wavelength.
This value shall be calculated using intervals of one nanometer.

4. CONFORMITY OF PRODUCTION
4.1. LED light sources approved to this Regulation shall be so manufactured as to conform to
the type approved by meeting the inscriptions and technical requirements set forth in
Paragraph 3. above and Annexes 1, 4 and 5 to this Regulation.
4.2. In order to verify that the requirements of Paragraph 4.1. are met, suitable controls of the
production shall be carried out.
4.3. The holder of the approval shall in particular:
4.3.1. Ensure existence of procedures for the effective control of the quality of products,
4.3.2. Have access to the control equipment necessary for checking the conformity to each
approved type,
4.3.3. Ensure that data of test results are recorded and that related documents shall remain
available for a period to be determined in accordance with the Type Approval Authority,
4.3.4. Analyse the results of each type of test, applying criteria of Annex 6, in order to verify and
ensure the stability of the product characteristics making allowance for variation of an
industrial production,
4.3.5. Ensure that for each type of LED light source, at least the tests prescribed in Annex 5 to this
Regulation are carried out,
4.3.6. Ensure that any collecting of samples giving evidence of non-conformity with the type of test
considered shall give rise to another sampling and another test. All the necessary steps
shall be taken to re-establish the conformity of the corresponding production.
4.4. The competent authority which has granted type-approval may at any time verify the
conformity control methods applicable to each production unit.
4.4.1. In every inspection, the test books and production survey records shall be presented to the
visiting inspector.
4.4.2. The inspector may take samples at random which will be tested in the manufacturer's
laboratory. The minimum number of samples may be determined according to the results of
the manufacturer's own verification.
4.4.3. When the quality level appears unsatisfactory or when it seems necessary to verify the
validity of the tests carried out in application of Paragraph 4.4.2. above, the inspector shall
select samples, to be sent to the technical service which has conducted the type approval
tests.
4.4.4. The competent authority may carry out any tests prescribed in this Regulation. Where the
competent authority decides to carry out spot checks, criteria of Annexes 7 and 8 to this
Regulation shall be applied.
4.4.5. The normal frequency of inspection authorised by the competent authority shall be one
every two years. In the case where negative results are recorded during one of these visits,
the competent authority shall ensure that all necessary steps are taken to re-establish the
conformity of production as rapidly as possible.

ANNEX 1
SHEETS FOR LED LIGHT SOURCES
The sheets of the relevant LED light source category and the group in which this category is listed with
restrictions on the use of this category shall apply as incorporated in Resolution R.E.5 or its
subsequent revisions, applicable at the time of application for type approval of the LED light source.

CATEGORY LR1
Sheet LR1/2
Dimensions in mm
Table 1
Essential Electrical and Photometric Characteristics
LED light sources of normal
production
Tolerance
Standard LED light source
e 24.0 0.2 0.1
Cap PGJ2lt-1 in accordance with IEC Publication 60061 (Sheet 7004-165-1)
Rated
values
Objective
values
Electrical and photometric characteristics
Minor
function
Major
function
Minor
function
Volts 12 12
Watts
(at 13.5V DC)
Luminous flux
(in lm at 13.5V DC)
Luminous flux
(in lm 10-16V DC)
0.75max.
3.5max.
1.4min.
3.5 ± 20% 47 ± 20%
0.75max.
Major
function
3.5max.
1.4min.
3.5 ± 10% 47 ± 10%
Failure condition behaviour
In case of LED light source failure (no light emitted) the maximum current draw – when operated within
the input voltage range in major function mode – operation shall be less than 20 mA (open circuit
condition).
Screen projection requirements
The following test is intended to define the requirements for the apparent light emitting area of the LED
light source and to determine whether the light emitting area is correctly positioned relative to the
reference axis and reference plane in order to check compliance with the requirements.
The position of the light emitting area is checked by the box system defined in Figure 3, which shows the
projections when viewing along direction γ=90° in the planes C and C (C, γ as defined in Figure 4). At
least 95% of the luminous flux emitted into the viewing direction has to come from the trapezoidal area
defined by d1, d2 and c. Less than 70% of the luminous flux shall be emitted from the rectangular area
defined by d3 and c.

CATEGORY LR1
Sheet LR1/4
The drawings are intended only to
illustrate thee essential set-up for measurement of the LED light source
Photo-Detector of Goniometer
Reference Plane
e
γ
C
Reference Axis
Any C-plane between
C and C
Figure 4
Set-up to Measure thee Luminous
Intensity Distribution
D
Luminous
intensity data is recorded for thee major function with a standard photo-goniometer. The
measurement distance should be chosen appropriately, to
make suree that the detector is located in the
far field of
the light distribution.
The measurements shall be performed in 3 C-planes, which contain the reference axis of the light
source. The 3 C-planes shall be within C andd C to avoid the connector shadows and they have to be
at least 30° apart from
each other. The test points for each
plane for multiple m polarr angles γ are
specified
in Table 3.
After measurement the data shall be normalized to 10000 lm according to Paragraph 3.1.11 using the
luminous flux of the individual light source under test. The
data shall comply c with the tolerance band as
defined in
Table 3.
C-planes: see CIE publication 70-1987, "The measurement of absolutee intensity distributions".

CATEGORY LW2
Sheet LW2/1
The drawings are intended only to illustrate the essential dimensions (in mm) of the LED light source
Figure 1
Main Drawing – Front and Side View
Figure 2
Connector Detail

CATEGORY LW2
Sheet LW2/2
Screen Projection Requirements
This test is intended to determine whether the light emitting area of the LED light source is correctly
positioned relative to the reference axis and reference plane.
Compliance of position and dimension as defined in Table 2 is checked by the box system shown in
Figure 3. The left drawing displays the projection when viewing along the reference axis with an aperture
acceptance angle of ±40° while the right drawing defines the position of the reference plane and axis.
Size determination shall be done with suitable means.
Figure 3
Box Definition of Light Emitting Area
Table 2
Dimensions of the Light Emitting Area in Figure 3
Dimensions in mm
e
a
b
c
LED light sources of normal production
26.4 ± 0.2
14.5 +0/-2.5
10.1 +0/-1.5 ∅50.00 + 0.10/-0
Standard (Etalon) LED light sources
26.4 ± 0.1
14.5 +0/-2.5
10.1 +0/-1.5 ∅50.05 + 0.05/-0

CATEGORY LW2
Sheet LW2/4
Cumulative Luminous Flux Distribution
Measurement and Calculation Procedure
Data shall be recorded for the specified base temperature T from Table 1 at the location shown in
Figure 5.
Luminous intensity distribution data shall be recorded within a solid angle of -40° < α < +40° and
-40° < β < +40°. The measurement distance shall be chosen in such manner that the detector is located
in the far field of the light distribution. An angular step size of 1° or less is required.
After the measurement, the cumulative luminous flux distribution shall be calculated from the recorded
data for various solid angles as specified in Table 3 according to CIE Publication 84-1989, Section 4.3.
Subsequently, the distribution shall be normalized to the total luminous flux determined for
-40° < α < +40° and -40° < β < +40°. The data shall comply with the tolerance band defined in Table 3.
In order to secure a symmetrical distribution within each solid angle in Table 3 the luminous flux
determination shall be done independently for all 4 quadrants and flux values shall not differ by more
than 15%.
Table 3
Test Point Values of Normalized Cumulative Luminous Flux
for Both Normal Production and Standard Lamps
Angle α, β Min. normalized flux in % Max. normalized flux in %
-5° < α, β < +5° 8 14
10° < α, β < +10° 31 37
-15° < α, β < +15° 54 59
-20° < α, β < +20° 75 81
-25° < α, β < +25° 91 95
-30° < α, β < +30° 97 100
-35° < α, β < +35° 98 100
40° < α, β < +40° 100 (by definition)
The cumulative luminous flux distribution of the minor function may be verified by measuring the ratio of
major and minor function under a fixed angle and multiplication of this factor with the luminous flux of the
major function.
In case of doubt that cumulative luminous flux distributions of major and minor function differ, the
procedure as described above for the major function shall be repeated for the minor function.
Thermal interface geometry
The LW2 thermal interface is located within the reference plane (shaded area in Figure 5) and described
in detail in IEC Publication 60061 as indicated in Table 1 on sheet LW2/1. It shall be attached to an
appropriate heat sink or thermal management system.
The luminous flux given in Table 1 shall be achieved once the base temperature T measured at the
location shown in Figure 5 is stabilized.

CATEGORIES LR3A, LR3B, LW3A, LW3B, LY3A AND LY3B Sheet L3/1
The drawings are intended only to illustrate the essential dimensions of the LED light source.
Figure 1
Main Drawing
For the notes see Sheet L3/2
Projection method:

Screen projection requirements
CATEGORIES LR3A, LR3B, LW3A, LW3B, LY3A AND LY3B Sheet L3/3
The following test is intended to define the requirements for the apparent light emitting area of the LED
light source and to determine whether the light emitting area is correctly positioned relative to the
reference axis and reference plane in order to check compliance with the requirements.
The position of the light emitting area is checked by the box system defined in Figure 2, which is aligned
to the planes C90 and C180 and shows the projection when viewing along direction γ= 0º (C, γ as
defined in Figure 3).
The proportion of the total luminous flux emitted into the viewing direction shall be as described in
Table 3.
Figure 2
Box Definition of the Light Emitting Area with Dimension as Specified in Table 2
Table 2
Dimensions of the Box System in Figure 2

Normalized luminous intensity distribution
CATEGORIES LR3A, LR3B, LW3A, LW3B, LY3A and LY3B Sheet L3/5
The following test is intended to determine the normalized luminous intensity distribution of the light
source in an arbitrary plane containing the reference axis. The intersection of the reference axis and the
parallel plane to the reference plane in distance e is used as the coordinate system origin.
The light source is mounted on a flat plate with the corresponding mounting lug features. The plate is
mounted to the goniometer table by a bracket, so that the reference axis of the light source lines up with
one of the rotating axis of the goniometer. The corresponding measurement set-up is described in
Figure 3.
Luminous intensity data is recorded with a standard photo-goniometer. The measurement distance
should be chosen appropriately, to make sure that the detector is located in the far field of the light
distribution.
The measurements shall be performed in C-planes C (C ) and C (C ), which contain the reference
axis of the light source. The test points for each plane for multiple polar angles γ are specified in
Tables 4a and 4b.
The measured luminous intensity values, normalised to the measured luminous flux of the individual light
source under test, shall be converted to normalised luminous intensity values of a 1,000lm light source.
The data shall comply with the tolerance band as defined in Tables 4a and 4b.
The drawings are intended only to illustrate the essential set-up for measurement of the LED light
source.
Figure 3
Set-up Measure the Luminous Intensity Distribution

CATEGORIES LR4A AND LR4B
Sheet LR4/1
The drawings are intended only to illustrate the essential dimensions of the LED light source
Figure 1
Main Drawing
For the notes see Sheet LR4/2
Projection method:

CATEGORIES LR4A AND LR4B
Sheet LR4/3
Screen projection requirements
The following test is intended to define the requirements for the apparent light emitting area of the LED
light source and to determine whether the light emitting area is correctly positioned relative to the
reference axis and reference plane in order to check compliance with the requirements.
The position of the light emitting area is checked by the box system defined in Figure 2, which is aligned
to the planes C90 and C180 and shows the projection when viewing along direction γ= 0º
(C, γ as defined in Figure 3).
The proportion of the total luminous flux emitted into the viewing direction shall be as described in
Table 3.
Figure 2
Box Definition of the Light Emitting Area with Dimension as Specified in Table 2
Table 2
Dimensions of the Box System in Figure 2
Table 3
Proportion of the Total Luminous Flux Emitted into the Viewing Direction from the Areas
Specified In Figure 2

CATEGORIES LR4A AND LR4B
Sheet LR4/5
The light pattern as described in Table 4 shall be substantially uniform, i.e. In between two adjacent grid
points the relative luminous intensity requirement is calculated by linear interpolation using the two
adjacent grid points. In case of doubt this may be checked in addition to verification of the grid points
given in Table 4.
Angle
γ
Table 4
Test Point Values of Normalized Intensities of Normal Production
and Standard Lamps, Respectively.
Requirements Apply to Both, Major and Minor Function
LED Lamps of Normal Production
Minimum Intensity
in cd /1,000lm
Maximum Intensity
in cd/1,000lm
Minimum Intensity
in cd/1,000lm
Standard LED Lamps
Maximum Intensity
in cd /1,000lm
-90° 0 38 0 25
-75° 0 160 0 140
-60° 98 246 127 220
-45° 142 305 181 275
-30° 169 352 213 315
-15° 192 389 239 340
0° 200 401 248 352
15° 192 389 239 340
30° 169 352 213 315
45° 142 305 181 275
60° 98 246 127 220
75° 0 160 0 140
90° 0 38 0 25

CATEGORIES LR5A, LR5B, LW5A, LW5B, LY5A, LY5B Sheet L5/2
Table 1
Essential Dimensional, Electrical and Photometric Characteristics of the LED Light Source
Electrical characteristics
In case of LED light source failure (no light emitted) the max. electrical current draw, when operated
between 12 V and 14 V, shall be less than 20mA (open circuit condition).

CATEGORIES LR5A, LR5B, LW5A, LW5B, LY5A, LY5B Sheet L5/4
Table 3
Proportion of the Total Luminous Flux Emitted into the Viewing Direction from the
Areas Specified in Figure 2
Category
LR5A
LR5B
LW5A
LW5B
LY5A
LY5B
Area(s)
LED light sources of
normal production
Standard LED light sources
Each B individually ≥ 10% ≥ 15%
Each A, B individually < 40% < 30%
All B together ≥ 60% ≥ 65%
Each C individually - < 10%
All A, B and C together ≥ 90% ≥ 90%
Each A,B individually ≥ 6% ≥ 8%
Each A, B individually < 40% < 30%
All A, B together ≥ 55% ≥ 60%
Each C individually < 15% < 10%
All A, B and C together ≥ 90% ≥ 90%

CATEGORIES LR5A, LR5B, LW5A, LW5B, LY5A, LY5B Sheet L5/6
The light pattern as described in Table 4 shall be substantially uniform, i.e. in between two adjacent grid
points the relative luminous intensity requirement is calculated by linear interpolation using the two
adjacent grid points. In case of doubt this may be checked in addition to verification of the grid points
given in Table 4.
Angle
γ
Table 4
Test Point Values of Normalized Intensities for Categories LR5A, LR5B, LW5A, LW5B,
LY5A and LY5B
LED light sources of normal production
Minimum Intensity in
cd/1,000lm
Maximum Intensity in
cd/1,000lm
Standard LED light sources
Minimum Intensity in
cd/1,000lm
Maximum Intensity in
cd/1,000lm
-90° 0 70 0 65
-75° 0 160 0 150
-60° 85 245 105 220
-45° 145 310 180 275
-30° 170 380 220 335
-15° 190 415 240 370
0° 200 425 250 390
15° 190 415 240 370
30° 170 380 220 335
45° 145 310 180 275
60° 85 245 105 220
75° 0 160 0 150
90° 0 70 0 65

10.
Position of the approval mark: ..........................................................................................................
11.
Reason(s) for extension (if applicable): ............................................................................................
12.
Approval granted/refused/extended/withdrawn
: ............................................................................
13.
Place: ................................................................................................................................................
14.
Date: .................................................................................................................................................
15.
Signature: ..........................................................................................................................................
16.
The following documents, bearing the approval mark shown above, are available on request: ......

ANNEX 4
METHOD OF MEASUREMENT OF ELECTRICAL AND PHOTOMETRICAL CHARACTERISTICS
Light sources of all categories with integrated heatsink shall be measured at ambient temperature of
(23 ± 2) °C in still air. For these measurements the minimum free space as defined in the data sheets
shall be maintained.
Light sources of all categories with definition of a temperature T shall be measured by stabilising the
T -Point at the specific temperature defined on the category data sheet.
1. LUMINOUS FLUX
1.1. A luminous flux measurement using an integrating method shall be made
(a)
In case of an integrated heatsink after 1min and after 30min of operation
or
(b)
After stabilisation of the temperature at the T Point.
1.2. The luminous flux values, as measured after
(a)
(b)
30min, or
Stabilisation of temperature T
Shall comply with the minimum and maximum requirements.
In case of (a), unless otherwise specified on the data sheet, this value shall be in between 100%
and 80% of the value measured after 1min.
1.3. Measurements have to be carried out at relevant test voltage and at the minimum and maximum
values of the relevant voltage range. Unless specified more tightly on the data sheet the
following deviation of the luminous flux at the tolerance interval limits shall not be exceeded.
Rated voltage
Min voltage
Max voltage
6
6.0
7.0
12
12.0
14.0
24
24.0
28.0
Corresponding luminous flux
tolerance
± 30% ± 15%

ANNEX 5
MINIMUM REQUIREMENTS FOR QUALITY CONTROL
PROCEDURES BY THE MANUFACTURER
1. GENERAL
The conformity requirements shall be considered satisfied from a photometric, geometrical,
visual and electrical standpoint if the specified tolerances for production LED light sources in
the relevant data sheet of Annex 1 and the relevant data sheet for the caps are met.
2. MINIMUM REQUIREMENTS FOR VERIFICATION OF CONFORMITY BY THE
MANUFACTURER
For each type of LED light source the manufacturer or the holder of the approval mark shall
carry out tests, in accordance with the provisions of this Regulation, at appropriate intervals.
2.1. Nature of Tests
Tests of conformity of these specifications shall cover their photometric, geometrical and optical
characteristics.
2.2. Methods Used in Tests
2.2.1. Tests shall generally be carried out in accordance with the methods set out in this Regulation.
2.2.2. The application of Paragraph 2.2.1. of this annex requires regular calibration of test apparatus
and its correlation with measurements made by a competent authority.
2.3. Nature of Sampling
Samples of LED light sources shall be selected at random from the production of a uniform
batch. A uniform batch means a set of LED light sources of the same type, defined according to
the production methods of the manufacturer.
2.4. Inspected and Recorded Characteristics
The LED light sources shall be inspected and test results recorded following the grouping of
characteristics as listed in Annex 6, Table 1.
2.5. Criteria Governing Acceptability
The manufacturer or the holder of approval is responsible for carrying out a statistical study of
the test results in order to meet the specifications laid down for verification of conformity of
production in Paragraph 4.1. of this Regulation.
Compliance shall be assured if the level of acceptable non-compliance per grouping of
characteristics given in Table 1 of Annex 6 is not exceeded. This means that the number of
LED light sources not complying with the requirement for any grouping of characteristics of any
LED light sources type does not exceed the qualifying limits in the relevant Tables 2, 3 or 4 of
Annex 6.
Note: Each individual LED light source requirement shall be considered as a characteristic.

Qualifying limits for acceptance based on different numbers of test results for each grouping of
characteristics are listed in Table 2 as maximum number of non-compliance. The limits are based on an
acceptable level of 1% of non-compliance, assuming an acceptance probability of at least 0.95.
Table 2
Number of test results of each characteristics
20
21 – 50
51 – 80
81 – 125
126 – 200
201 – 260
261 – 315
316 – 370
371 – 435
436 – 500
501 – 570
571 – 645
646 – 720
721 – 800
801 – 860
861 – 920
921 – 990
991 – 1,060
1,061 – 1,125
1,126 – 1,190
1,191 – 1,249
Qualifying limits for acceptance

Qualifying limits for acceptance based on different numbers of test results for each grouping of
characteristics are listed in Table 4 given as a percentage of the results, assuming an acceptance
probability of at least 0.95.
Table 4
Number of test results of each
characteristic
1,250
2,000
4,000
6,000
8,000
10,000
20,000
40,000
80,000
100,000
1,000,000
Qualifying limits shown as a
percentage of results.
Acceptable level of 1% of
non-compliance
1.68
1.52
1.37
1.30
1.26
1.23
1.16
1.12
1.09
1.08
1.02
Qualifying limits shown as a
percentage of results.
Acceptable level of 6.5% of
non-compliance
7.91
7.61
7.29
7.15
7.06
7.00
6.85
6.75
6.68
6.65
6.55

ANNEX 8
COMPLIANCE APPROVED BY SPOT CHECK
Compliance approved or disapproved shall be decided according to the values in Table 1. For each
grouping of characteristics LED light sources shall be either accepted or rejected according to the values
in Table 1 .
Table 1
1% 6.5%
Accept Reject Accept Reject
First sample size: 125
2
5
11
16
If the number of non-conforming
units is greater than 2 (11) and less
than 5 (16) take a second sample
size of 125 and assess the 250
6
7
26
27
LED Light Sources for Use in Approved Lamp Units.