Regulation No 128 of the Economic Commission for Europe of the United Nations (UN/ECE) — 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
Date: 2014-05-29
Institutions: United Nations Economic Commission for Europe
Subjects: approval, motor vehicle, signalling device, technical standard




L_2014162EN.01004301.xml










29.5.2014   


EN


Official Journal of the European Union


L 162/43






Only the original UN/ECE texts have legal effect under international public law. The status and date of entry into force of this Regulation should be checked in the latest version of the UN/ECE status document TRANS/WP.29/343, available at:
http://www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29fdocstts.html

Regulation No 128 of the Economic Commission for Europe of the United Nations (UN/ECE) — 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

Incorporating all valid text up to:
Supplement 2 to the original version of the Regulation – Date of entry into force: 10 June 2014
      
CONTENTS
REGULATION







1.

Scope











2.

Administrative provisions











3.

Technical requirements











4.

Conformity of production











5.

Penalties for non-conformity of production











6.

Production definitively discontinued











7.

Names and addresses of Technical Services responsible for conducting approval tests, and of Type Approval Authorities




ANNEXES







1.

Sheets for LED light sources











2.

Communication











3.

Example of the arrangement of the approval mark











4.

Method of measurement of electrical and photometrical characteristics











5.

Minimum requirements for quality procedures by the manufacturer











6.

Sampling and compliance levels for manufacturer test records











7.

Minimum requirements for spot checks by the Type Approval Authority











8.

Compliance approved by spot check




1.   SCOPE
This Regulation applies to LED light sources shown in Annex 1 and intended for use in approved signalling lamp units of power-driven vehicles and of their trailers.
2.   ADMINISTRATIVE PROVISIONS
2.1.   Definitions
2.1.1.   Definition of ‘category’
The term ‘
                  category
                  ’ is used in this Regulation to describe different basic design of standardised LED light sources. Each category has a specific designation as for example: ‘LW1’, ‘LY2’, ‘LR2’.
2.1.2.   Definition of ‘type’
LED light sources of different ‘
                  types
                  ’ are LED light sources within the same category which differ in such essential respects as:






2.1.2.1.


Trade name or mark;
LED light sources bearing the same trade name or mark but produced by different manufacturers are considered as being of different types. LED light sources produced by the same manufacturer differing only by the trade name or mark may be considered to be of the same type.










2.1.2.2.


Light source design, in so far as these differences affect the optical results;










2.1.2.3.


Rated voltage.




2.2.   Application for approval
2.2.1.   Application for approval shall be submitted by the owner of the trade name or mark, or by his duly accredited representative.
2.2.2.   Every application for approval shall be accompanied (see also paragraph 2.4.2) by:






2.2.2.1.


Drawings in triplicate, sufficiently detailed to permit identification of the type;










2.2.2.2.


A brief technical description;










2.2.2.3.


Five samples of each colour which has been applied for;




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)


Is identical with (except in the trade name or mark), and










(b)


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 paragraph 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.
2.4.3.   Notice of approval or of extension or refusal or withdrawal of approval or production definitely discontinued of a type of LED light sources pursuant to this Regulation shall be communicated to the Parties of the Agreement which apply this Regulation by means of a form conforming to the model in Annex 2 to this Regulation and of a drawing, supplied by the applicant for approval in a format not exceeding A4 (210 × 297 mm) and on a scale of at least 2:1.
2.4.4.   To every LED light source conforming to a type approved under this Regulation there shall be affixed in the space referred to in paragraph 2.3.1.4, in addition to the inscriptions required under paragraph 2.3.1, an international approval mark consisting of:






2.4.4.1.


A truncated circle surrounding the letter ‘E’ followed by the distinguishing number of the country which has granted approval (1);










2.4.4.2.


The approval code, placed close to the truncated circle.




2.4.5.   If the applicant has obtained the same approval code for several trade names or marks, one or more of them will suffice to meet the requirements of paragraph 2.3.1.1.
2.4.6.   The marks and inscriptions specified in paragraphs 2.3.1 and 2.4.3 shall be clearly legible and be indelible.
2.4.7.   Annex 3 to this Regulation gives an example of arrangement of the approval mark.
3.   TECHNICAL REQUIREMENTS
3.1.   Definitions
3.1.1.   Rated voltage: voltage (in volts) marked on the LED light source;
3.1.2.   Test voltage(s): voltage(s) or voltage range(s), at the LED light sources terminals for which the electrical and photometric characteristics of the LED light sources are intended and are to be tested.
3.1.3.   Objective values: Design value of an electrical or photometric characteristic. To be achieved, within the specified tolerances, when the LED light source is energised at relevant test voltage.
3.1.4.   Standard (étalon) LED light source: Special LED light source used for the testing of lighting and light-signalling devices. It has reduced tolerances for dimensional, electrical and photometric characteristics as specified on the relevant data sheet. Standard LED light sources are specified in only one voltage rating for each category.
3.1.5.   Reference axis: an axis defined with reference to the cap and to which certain dimensions of the LED light sources are referred;
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 characterise 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.   Normalised luminous intensity: luminous intensity divided by the luminous flux of the light source in order to characterise 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 (2).
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) shall be the only element(s) of the LED light source that generate and emit light, either directly or via fluorescence-based conversion, when energised.




3.3.   Tests








3.3.1.


LED light sources shall first be aged at their test voltage for at least forty-eight hours. For multi-function LED light sources, each function shall be aged separately.












3.3.2.


Unless otherwise specified, electrical and photometric measurements shall be carried out at the relevant test voltage(s).












3.3.3.


Electrical measurements as specified in Annex 4 shall be carried out with instruments of at least class 0.2 (0,2 per cent full scale accuracy).




3.4.   Position and dimensions of apparent light emitting area








3.4.1.


The position and dimensions of the apparent light emitting area shall conform to the requirements as given on the relevant data sheet of Annex 1.












3.4.2.


The measurement shall be made after ageing the LED light source according to paragraph 3.3.1.




3.5.   Luminous flux








3.5.1.


When measured according to the conditions specified in Annex 4, the luminous flux shall be within the limits given on the relevant data sheet of Annex 1.












3.5.2.


The measurement shall be made after ageing the LED light source according to 3.3.1.




3.6.   Normalised luminous intensity distribution/cumulative luminous flux distribution








3.6.1.


When measured according to the test conditions specified in Annex 4 to this Regulation, the normalised luminous intensity distribution and/or cumulative luminous flux distribution shall be within the limits given on the relevant data sheet of Annex 1.












3.6.2.


The measurement shall be made after ageing the LED light source according to paragraph 3.3.1.




3.7.   Colour








3.7.1.


The colour of the light emitted by the LED light sources shall be specified on the relevant data sheet. The definitions of the colour of the light emitted given in Regulation No 48 and its series of amendments in force at the time of application for type approval shall apply to this regulation.












3.7.2.


The colour of the light emitted shall be measured by the method specified in Annex 4. Each measured value shall lie within the required tolerance area.












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:





where:






Ee(λ) (unit: W)


is the spectral distribution of the irradiance;




V(λ) (unit: 1)


is the spectral luminous efficiency;




λ (unit: nm)


is the wavelength.




This value shall be calculated using intervals of one nanometre.




3.8.   UV-radiation
The UV-radiation of the LED light source shall be such that the LED light source is of the low UV type complying with:





where:






S(λ)(unit: 1)


is the spectral weighting function;




km = 683 lm/W


is the maximum value of the luminous efficacy of radiation.




(For definitions of the other symbols see paragraph 3.7.3 above).
This value shall be calculated using intervals of one nanometre. The UV-radiation shall be weighted according to the values as indicated in the Table below:






λ


S(λ)




250 


0,430 




255 


0,520 




260 


0,650 




265 


0,810 




270 


1,000 




275 


0,960 




280 


0,880 




285 


0,770 




290 


0,640 




295 


0,540 




300 


0,300 




305 


0,060 




310 


0,015 




315 


0,003 




320 


0,001 




325 


0,00050 




330 


0,00041 




335 


0,00034 




340 


0,00028 




345 


0,00024 




350 


0,00020 




 


 




355 


0,00016 




360 


0,00013 




365 


0,00011 




370 


0,00009 




375 


0,000077 




380 


0,000064 




385 


0,000530 




390 


0,000044 




395 


0,000036 




400 


0,000030 




 


 





Note: Values according to ‘IRPA/INIRC Guidelines on limits of exposure to ultraviolet radiation’. Wavelengths (in nanometres) chosen are representative; other values should be interpolated.
3.9.   Standard LED light sources
Additional requirements for standard (étalon) LED light sources are given on the relevant data sheets of Annex 1.
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.




5.   PENALTIES FOR NON-CONFORMITY OF PRODUCTION








5.1.


The approval granted in respect of a LED light source pursuant to this Regulation may be withdrawn if the requirements are not met or if a LED light source bearing the approval mark does not conform to the type approved.












5.2.


If a Contracting Party to the Agreement applying this Regulation withdraws an approval it has previously granted, it shall forthwith so notify the other Contracting Parties applying this Regulation, by means of a communication form conforming to the model in Annex 2 to this Regulation.




6.   PRODUCTION DEFINITIVELY DISCONTINUED
If the holder of the approval completely ceases to manufacture a type of LED light source approved in accordance with this Regulation, he shall so inform the Type Approval Authority which has granted the approval. Upon receiving the relevant communication, that Authority shall inform thereof the other Parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to the model in Annex 2 to this Regulation.
7.   NAMES AND ADDRESSES OF THE TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, AND OF TYPE APPROVAL AUTHORITIES
The Parties to the 1958 Agreement which apply this Regulation shall communicate to the United Nations secretariat the names and addresses of the Technical Services responsible for conducting approval tests and of the Type Approval Authorities which grant approval and to which forms certifying approval or extension or refusal or withdrawal of approval, or production definitively discontinued issued in other countries, are to be sent.


(1)  As defined in the Consolidated Resolution on the Construction of Vehicles (R.E.3.), document ECE/TRANS/WP.29/78/Rev.2, para. 2

(2)  Based on CIE/IEC vocabulary IEV 845-09-31.




ANNEX 1

SHEETS
                   (*1)
FOR LED LIGHT SOURCES

List of categories of LED light sources and their sheet numbers:








Category



 



Sheet number(s)





LR1


 


LR1/1 to 5




LW2


 


LW2/1 to 5




List of sheets for LED light sources and their sequence in this annex:

Sheet number(s)

LR1/1 to 5
LW2/1 to 5

Category LR1 — Sheet LR1/1

The drawings are intended only to illustrate the essential dimensions (in mm) of the LED light source

Figure 1


Main drawing






Text of image

(1) The reference plane is the plane defined by the contact points of the cap-holder fit.
(2) The reference axis is perpendicular to the reference plane and passing through the centre of the bayonet core.
(3) Light emitting area: to be checked by means of the box system in Figure 3.


Figure 2


Connector detail






Text of image

(1) Optional pin.


Category LR1 — Sheet LR1/2


Table 1


Essential electrical and photometric characteristics











Dimensions in mm


Tolerance




LED light sources of normal production


Standard LED light source




e (1)



24,0 


0,2 


0,1 




Cap PGJ21t-1 in accordance with IEC Publication 60061 (sheet 7004-165-1)




Electrical and photometric characteristics (2)





Rated values


 


Minor function


Major function


Minor function


Major function




Volts


12 


12 




Objective Values (3)



Watts (at 13,5 V DC)


0,75 max.


3,5 max.
1,4 min.


0,75 max.


3,5 max.
1,4 min.




Luminous flux (in lm at 13,5 V DC)


 


 


3,5 ± 10 %


47 ± 10 %




Luminous flux (in lm at 10-16 V DC)


3,5 ± 20 %


47 ± 20 %


 


 




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 C90 and C180 (C, γ as defined in Figure 4). At least 95 per cent 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 per cent of the luminous flux shall be emitted from the rectangular area defined by d3 and c.

Category LR1 — Sheet LR1/3


Figure 3


Box definition of the light emitting area







Table 2


Dimensions of the box system in Figure 3











Dimensions in mm


f


c


d1


d2


d3




LED light sources of normal production


E + 0,2


3,6 


21,0 


15,0 


7,0 




Standard (etalon) LED light sources


E + 0,1


3,4 


21,0 


15,0 


7,0 




Normalised luminous intensity distribution
The following test is intended to determine the normalised luminous intensity distribution of the light source in an arbitrary plane containing the reference axis. The intersection of the reference axis and the upper edge of the box 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 4.

Category LR1 — Sheet LR1/4

The drawings are intended only to illustrate the essential set-up for measurement of the LED light source

Figure 4


Set-up to measure the luminous intensity distribution






Luminous intensity data is recorded for the major function 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 3 C-planes, which contain the reference axis of the light source. The 3 C-planes shall be within C30 and C330 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 polar angles γ are specified in Table 3.
After measurement the data shall be normalised to 1 000 lm according to paragraph 3.1.11 using the luminous flux of the individual light source under test. The data shall comply with the tolerance band as defined in Table 3.
C-planes: see CIE publication 70-1987, ‘The measurement of absolute intensity distributions’.

Category LR1 — Sheet LR1/5


Table 3


Test point values of normalised intensity for the major function of normal production and standard light sources, respectively










 


LED light source of normal production


Standard LED light source




γ


Minimum intensity in cd/1 000  lm


Maximum intensity in cd/1 000  lm


Minimum intensity in cd/1 000  lm


Maximum intensity in cd/1 000  lm




0°


0 


30 


0 


20 




15°


0 


30 


0 


20 




30°


0 


70 


0 


40 




45°


20 


100 


20 


60 




60°


35 


120 


35 


80 




75°


50 


140 


50 


100 




90°


70 


160 


70 


120 




105°


90 


180 


90 


140 




120°


110 


200 


110 


160 




135°


110 


200 


110 


160 




150°


90 


180 


90 


140 




The luminous intensity distribution as described in Table 3 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.

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






Text of image

(1) The reference plane is given by the thermal transfer area on the backside of the light source.
(2) The reference axis is perpendicular to the reference plane and passing through the centre of the light source as defined by three notches on the outer perimeter.
(3) Light emitting area: to be checked by means of the box system in Figure 3.


Figure 2


Connector Detail






Text of image

(1) Optional pin.


Table 1


Essential electrical and photometric characteristics











Dimensions in mm


Tolerances




LED light sources of normal production


Standard LED light sources




e


26,4 


0,2 


0,1 




[Cap PGJY50] in accordance with IEC Publication 60061 (sheet 7004-[…]-1)




Electrical and photometric characteristics (4)





Rated values


 


Minor function


Major function


Minor function


Major function




Volts


12 


12 




Objective Values (5)
 (6)



Watts (at 13,5 V DC)


1 max.


12 max.
4 min.


1 max.


12 max.
4 min.




Luminous flux (in lm at 13,5 V DC)


 


 


50 ± 10 %


725 ± 10 %




Luminous flux (in lm at 10-16 V DC)


50 ± 15 %


725 ± 15 %


 


 




Corresponding base temperature Tb in °C


30 ± 2


55 ± 2


30 ± 0,5


55 ± 0,5





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






Text of image

(1) The reference plane is given by the thermal transfer area on the backside of the light source.
(2) The reference axis is perpendicular to the reference plane and passing through the centre of the light source as defined by three notches on the outer perimeter.
(3) Light emitting area: to be checked by means of the box system in Figure 3.


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


Ø 50,00 + 0,10/– 0




Standard (Etalon) LED light sources


26,4 ± 0,1


14,5 + 0/– 2,5


10,1 + 0/– 1,5


Ø 50,05 + 0,05/– 0





Category LW2 — Sheet LW2/3

Cumulative luminous flux distribution
Measurement set-up
This test is intended to determine the cumulative luminous flux within defined solid angles of the luminous intensity distribution.
Goniophotometers of type I or II according to CIE publication No 70 -1987 with the capability of turning the light source around two axes perpendicular to the axis of light emission can be used. The intersection of the reference axis and the parallel plane to the reference plane in distance e is used as the coordinate system origin.

Figure 4


Set-up to measure the luminous intensity distribution using a type I photogoniometer






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 in such way, that the reference axis of the light source lines up with the measurement axis of the goniometer. The corresponding measurement set-up is described in Figure 4.

Category LW2 — Sheet LW2/4

Cumulative luminous flux distribution
Measurement and calculation procedure
Data shall be recorded for the specified base temperature Tb from Table 1 at the location shown in Fig. 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 normalised 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 normalised cumulative luminous flux for both normal production and standard lamps








Angle α, β


Min. normalised flux in %


Max. normalised 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 Tb measured at the location shown in Figure 5 is stabilised.

Category LW2 — Sheet LW2/5


Figure 5


Rear-view: thermal contact area and location of Tb-point on the vertical symmetry axis, at a distance f from the centre












Dimensions in mm




c


50,0 




d


34,5 




f


13,0 




g


10,0 




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 – shall be less than 20 mA (open circuit condition).


(*1)  Tables, Electrical and Photometric characteristics:






 


Voltage is expressed in V;










 


Wattage is expressed in W;










 


Luminous flux is expressed in lm;










 


Normalised luminous intensity is expressed in cd/1 000 lm;










 


Normalised cumulative luminous flux is expressed in %.





(1)  Light emitting area: to be checked by means of the box system in Figure 3.

(2)  The emitted light shall be red.

(3)  Continuous on for 30 minutes at 23 ± 2,5 °C.

(4)  The emitted light shall be white.

(5)  Continuous operation for 30 minutes with base temperature Tb stabilised as specified above.

(6)  Luminous flux from the light emitting area shall be determined within a solid angle of - 40° < α < + 40° and - 40° < β < +40° using either integral methods or the procedure described on sheets LW2/3 and LW2/4.





ANNEX 2

COMMUNICATION

(maximum format: A4 (210 × 297 mm))





Text of image

issued by:
Name of administration
concerning (2):
APPROVAL GRANTED
APPROVAL EXTENDED
APPROVAL REFUSED
APPROVAL WITHDRAWN
PRODUCTION DEFINITELY DISCONTINUED
of a type of LED light source pursuant to Regulation No 128
Approval No …
Extension No …
1. Trade name or mark of the device: …
2. Manufacturer’s name for the type of device: …
3. Manufacturer’s name and address: …
4. If applicable, name and address of manufacturer’s representative: …
5. Submitted for approval on: …
6. Technical Service responsible for conducting approval tests: …
7. Date of report issued by that Service: …
8. Number of report issued by that Service: …
9. Type of body: …
Category of LED light source: …
Rated voltage: …
Colour(s) of the light emitted: White/amber/red (2) …
10. Position of the approval mark: …
11. Reason(s) for extension (if applicable): …
12. Approval granted/refused/extended/withdrawn (2): …
13. Place: …
14. Date: …
15. Signature: …
16. The following documents, bearing the approval mark shown above, are available on request: …
(1) Distinguishing number of the country which has granted/refused/withdrawn approval (see approval provisions in the Regulation).
(2) Strike out what does not apply.






ANNEX 3

EXAMPLE OF THE ARRANGEMENT OF THE APPROVAL MARK

(see paragraph 2.4.4)




a = 2,5 mm min.
The above approval mark affixed to a LED light source indicates that the light source has been approved in the United Kingdom (E11) under the approval code 0A01. The first character of the approval code indicates that the approval was granted in accordance with the requirements of Regulation No 128 (*1) in its original form.


(*1)  Not requiring changes in the approval number.





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 Tb shall be measured by stabilising the Tb-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 1 minute and after 30 minutes of operation
or










(b)


After stabilisation of the temperature at the Tb point.
















1.2.


The luminous flux values, as measured after






(a)


30 minutes, or










(b)


Stabilisation of temperature Tb





Shall comply with the minimum and maximum requirements.
In case of (a) this value shall be in between 100 per cent and 80 per cent of the value measured after 1 minute.












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 (*1)



± 30 %


± 15 %








2.   Normalised luminous intensity/cumulative luminous flux








2.1.


The luminous intensity measurements shall be started after






a)


30 minutes of stabilisation time or










b)


Stabilisation of temperature Tb at the value given in the relevant data sheet.
















2.2.


Measurements have to be carried out at relevant test voltage.












2.3.


Normalised luminous intensity of a test sample is calculated by dividing the luminous intensity distribution as measured under paragraph 2.1 of this annex by the luminous flux as determined after 30 minutes under paragraph 1.2 of this annex.












2.4.


Cumulative luminous flux of a test sample is calculated according to CIE publication 84-1989, Section 4.3 by integrating the luminous intensity within a cone enclosing a solid angle.




3.   Colour
The colour of the light emitted as measured under the same conditions as described paragraph in 1.1 of this annex shall both be within the required colour boundaries.
4.   Power consumption








4.1.


A power consumption measurement shall be made under the same conditions as described in paragraph 1.1 of this annex using the requirements of paragraph 3.3.3 of this Regulation.












4.2.


Power consumption measurements shall be carried out at relevant test voltage.












4.3.


Values obtained shall comply with the minimum and maximum requirements of the relevant data sheet.






(*1)  The maximum luminous flux deviation at the tolerance limits is calculated by using the measured flux at test voltage as reference. In between test voltage and voltage range limits the luminous flux behaviour shall be substantially uniform.





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.





ANNEX 6

SAMPLING AND COMPLIANCE LEVELS FOR MANUFACTURER TEST RECORDS


Table 1


Characteristics









Grouping of characteristics


Grouping (*1) of test records between lamp types


Minimum 12 monthly sample per grouping (*1)



Acceptable level of non-compliance per grouping of characteristics
(%)




Marking, legibility and durability


All types with the same external dimensions


315 


1 




External lamp dimensions (excluding cap/base)


All types of the same category


200 


1 




Dimensions of caps and bases


All types of the same category


200 


6,5 




Dimensions related to light emitting surface and internal elements (*2)



All lamps of one type


200 


6,5 




Initial readings, power, colour and luminous flux (*2)



All lamps of one type


200 


1 




Normalised luminous intensity or cumulative luminous flux distribution


All lamps of one type


20 


6,5 




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 per cent of non-compliance, assuming an acceptance probability of at least 0,95.

Table 2







Number of test results of each characteristics


Qualifying limits for acceptance




20 


0 




21 - 50


1 




51 - 80


2 




81 - 125


3 




126 - 200


5 




201 - 260


6 




261 - 315


7 




316 - 370


8 




371 - 435


9 




436 - 500


10 




501 - 570


11 




571 - 645


12 




646 - 720


13 




721 - 800


14 




801 - 860


15 




861 - 920


16 




921 - 990


17 




991 - 1 060 


18 




1 061  - 1 125 


19 




1 126  - 1 190 


20 




1 191  - 1 249 


21 




Qualifying limits for acceptance based on different numbers of test results for each grouping of characteristics are listed in Table 3 given as maximum number of non-compliance. The limits are based on an acceptable level of 6,5 per cent of non-compliance, assuming an acceptance probability of at least 0,95.

Table 3







Number of lamps in records


Qualifying limit




20 


3 




21 – 32


5 




33 – 50


7 




51 – 80


10 




81 – 125


14 




126 – 200


21 




201 - 213


22 




214 - 227


23 




228 - 240


24 




241 - 254


25 




255 - 268


26 




269 - 281


27 




282 - 295


28 




296 - 308


29 




309 - 322


30 




323 - 336


31 




337 - 349


32 




350 - 363


33 




364 - 376


34 




377 - 390


35 




391 - 404


36 




405 - 417


37 




418 - 431


38 




432 - 444


39 




445 - 458


40 




459 - 472


41 




473 - 485


42 




486 - 499


43 




500 - 512


44 




513 - 526


45 




527 - 540


46 




541 - 553


47 




554 - 567


48 




568 - 580


49 




581 - 594


50 




595 - 608


51 




609 - 621


52 




622 - 635


53 




636 - 648


54 




649 - 662


55 




663 - 676


56 




677 - 689


57 




690 - 703


58 




704 - 716


59 




717 - 730


60 




731 - 744


61 




745 - 757


62 




758 - 771


63 




772 - 784


64 




785 - 798


65 




799 - 812


66 




813 - 825


67 




826 - 839


68 




840 - 852


69 




853 - 866


70 




867 - 880


71 




881 - 893


72 




894 - 907


73 




908 - 920


74 




921 - 934


75 




935 - 948


76 




949 - 961


77 




962 - 975


78 




976 - 988


79 




989 - 1 002 


80 




1 003  - 1 016 


81 




1 017  - 1 029 


82 




1 030  - 1 043 


83 




1 044  - 1 056 


84 




1 057  - 1 070 


85 




1 071  - 1 084 


86 




1 085  - 1 097 


87 




1 098  - 1 111 


88 




1 112  - 1 124 


89 




1 125  - 1 138 


90 




1 139  - 1 152 


91 




1 153  - 1 165 


92 




1 166  - 1 179 


93 




1 180  - 1 192 


94 




1 193  - 1 206 


95 




1 207  - 1 220 


96 




1 221  - 1 233 


97 




1 234  - 1 249 


98 




 


 




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


Qualifying limits shown as a percentage of results.
Acceptable level of 1 % of non-compliance


Qualifying limits shown as a percentage of results.
Acceptable level of 6,5 % of non-compliance




1 250 


1,68 


7,91 




2 000 


1,52 


7,61 




4 000 


1,37 


7,29 




6 000 


1,30 


7,15 




8 000 


1,26 


7,06 




10 000 


1,23 


7,00 




20 000 


1,16 


6,85 




40 000 


1,12 


6,75 




80 000 


1,09 


6,68 




100 000 


1,08 


6,65 




1 000 000 


1,02 


6,55 






(*1)  The assessment shall in general cover series production LED light sources from individual factories. A manufacturer may group together records concerning the same type from several factories, provided these operate under the same quality system and quality management.

(*2)  In case a LED light source has more than one light output function the grouping of characteristics (dimensions, power, colour and luminous flux) applies to each element separately.





ANNEX 7

MINIMUM REQUIREMENTS FOR SPOT CHECKS BY THE TYPE APPROVAL AUTHORITY

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.   The conformity of mass-produced LED light sources shall not be contested if the results are in agreement with Annex 8 to this Regulation.
3.   Conformity shall be contested and the manufacturer requested to make the production meet the requirements if the results are not in agreement with Annex 8 to this Regulation.
4.   If paragraph 3 of this annex is applied, a further sample of 250 LED light sources, selected at random from a recent production run, shall be taken within two months.





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  %
 (*1)



6,5  % (*1)





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 










(*)


The proposed scheme is designed to assess the compliance of LED light sources to an acceptance level of non-compliance of 1 per cent and 6,5 per cent respectively and is based on the Double Sampling Plan for Normal Inspection in IEC Publication 60410: Sampling Plans and Procedures for Inspection by Attributes.










(*1)  The LED light sources shall be inspected and test results recorded following the grouping of characteristics as listed in Annex 6, Table 1.