FINAL DRAFT UGANDA 
STANDARD  
  FDUS 902 
First Edition  
2011 -mm-dd 
 
 
 Reference number  
FDUS 902: 2011 
© UNBS 2011  
  
Self-ballasted l amps for General Lighting Services  (GLS)  — 
Performance requirements  
 FDUS 902: 2011 
ii © UNBS 2011 – All rights reserved  
 Compliance with this standard does not, of itself confer immunity from legal obligations  
A Uganda Standard does not purport to include all necessary provisions of a cont ract. Users are 
responsible for its correct application  
© UNBS 20 11  
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilised in any 
form or by any means, electronic or mechanical, including photocopying an d microfilm, without prior written 
permission from UNBS.  
Requests for permission to reproduce this document should be addressed to  
The Executive Director  
Uganda National Bureau of Standards  
P.O. Box 6329  
Kampala  
Uganda  
Tel: 256 41 4 505 995  
Fax: 256 41 4 286 123 
E-mail: unbs@infocom.co.ug  
Web: www.unbs.go.ug  FDUS 902:2011 
© UNBS 2011 – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ...................... iv 
1 Scope  ................................ ................................ ................................ ................................ ................ 1 
2 Normative references  ................................ ................................ ................................ ....................... 1 
3 Terms and definitions  ................................ ................................ ................................ ...................... 1 
4 Lamp requirements  ................................ ................................ ................................ .......................... 3 
4.1 Dimensions  ................................ ................................ ................................ ................................ .......3 
4.2 Test conditions  ................................ ................................ ................................ ................................ .3 
4.3 Starting and run -up ................................ ................................ ................................ .......................... 3 
4.4 Lamp wattage  ................................ ................................ ................................ ................................ ...3 
4.5 Luminous flux  ................................ ................................ ................................ ................................ ...3 
4.6 Colour  ................................ ................................ ................................ ................................ ............... 4 
4.7 Lumen maintenance  ................................ ................................ ................................ ......................... 4 
4.8 Life ................................ ................................ ................................ ................................ .................... 4 
4.9 Harmonics ................................ ................................ ................................ ................................ ......... 4 
5 Condition of compliance  ................................ ................................ ................................ .................. 4 
5.1 Dimension  ................................ ................................ ................................ ................................ ......... 4 
5.2 Starting time  ................................ ................................ ................................ ................................ .....4 
5.3 Run-up time  ................................ ................................ ................................ ................................ ......4 
5.4 Power factor  ................................ ................................ ................................ ................................ .....5 
5.5 Lumen maintenance  ................................ ................................ ................................ ......................... 5 
5.6 Life time  ................................ ................................ ................................ ................................ ............ 5 
5.7 Audible noise  ................................ ................................ ................................ ................................ ....5 
5.8 Stabilization time  ................................ ................................ ................................ .............................. 5 
5.9 Fast switching life evaluation  ................................ ................................ ................................ .......... 5 
6 Efficacy  ................................ ................................ ................................ ................................ ............. 5 
7 Labelling  ................................ ................................ ................................ ................................ ........... 6 
8 Conformance criteria ................................ ................................ ................................ ........................ 8 
9 Guarantee and quality  ................................ ................................ ................................ ...................... 8 
9.1 Guarantee to customer  ................................ ................................ ................................ .................... 8 
9.2 Quality of production  ................................ ................................ ................................ ....................... 8 
10 Climatic compliance  ................................ ................................ ................................ ......................... 8 
Annex  A (normative)  Lamp size (Geometric)  ................................ ................................ .............................. 9 
Annex  B (informative)  Method of measuring lamp characteristics  ................................ .........................  10 
B.1 General ................................ ................................ ................................ ................................ ............  10 
B.2  Starting and run -up ................................ ................................ ................................ .......................  10 
B.3 Electrical and photometric characteristics  ................................ ................................ ...................  10 
B.3.1  Test voltage  ................................ ................................ ................................ ................................ .... 10 
B.3.2  Ageing  ................................ ................................ ................................ ................................ .............  10 
B.3.3  Stabilization time  ................................ ................................ ................................ ............................  11 
B.4 Lamp life and lumen maintenance  ................................ ................................ ................................ . 11 
B.4.1  Ambient ................................ ................................ ................................ ................................ ...........  11 
B.4.2  Test voltage  ................................ ................................ ................................ ................................ .... 11 
B.4.3  Switching on and off  ................................ ................................ ................................ ......................  11 
B.4.4  Establishing of average life ................................ ................................ ................................ ............  11 
Bibliography  ................................ ................................ ................................ ................................ ................  12 
 FDUS 902: 2011 
iv © UNBS 2011 – All rights reserved  
 Foreword  
Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry of Tourism, Trade and 
Industry established under Cap 327 , of the Laws of Uganda.  UNBS is mandated to co -ordinate the 
elaboration of standards and is  
(a) a member of International Organisation for Standardisation (ISO) and  
(b) a contact point for the WHO/FAO Codex Alimentarius Commission on Food Standards, and  
(c) the National Enquiry Point on TBT/SPS Agreements of the World Trade Org anisation (WTO).  
The work of preparing Uganda Standards is carried out through Technical Committees. A Technical 
Committee is established to deliberate on standards in a given field or area and consists of representatives of 
consumers, traders, academician s, manufacturers, government and other stakeholders.  
Draft Uganda Standards adopted by the Technical Committee are widely circulated to stakeholders and the 
general public for comments. The committee reviews the comments before recommending the draft stand ards 
for approval and declaration as Uganda Standards by the National Standards Council.  
This Final Draft Uganda Standard, FDUS 902, is a revision of US IEC 60969 and will replace it fully.  
Committee membership  
The following organizations were represented on the Energy Management  Technical Committee , UNBS/TC 
13, during the development of this standard:  
 Department of Mechanical Engineering, Makerere University  
 Econoler  
 Electricity Regulatory Authority (ERA)  
 GTZ-Promotion of Renewable Energy and Energy Effici ency Programme (GTZ -PREEEP)  
 Ministry of Energy and Mineral Development  
 Private Sector Foundation Uganda (PSFU)  
 Uganda Manufacturers’ Association (UMA)  
 Uganda National Bureau of Standards (UNBS)  
 Water and Electricity Consumers’ Association (WECA)  
 
The foll owing organizations were represented on the Lighting Appliances Sub -committee of the Energy 
Management Technical Committee , UNBS/TC 13, during the development of this standard:  
 Centre for Research in Energy and Energy Conservation (CREEC), Makerere Univers ity 
 Department of Electrical Engineering, Makerere University  
 Econoler   
 Industrial Technical Solutions (ITS) (U) Ltd  
 Kiboko Enterprise (U) Ltd  
 Ministry of Works and Transport  
 Osram/Dembe Trading Co. Ltd  FDUS 902:2011 
© UNBS 2011 – All rights reserved  v 
  Uganda National Bureau of Standards (UNBS)  
 Uganda Nat ional Chamber of Commerce and Industry (UNCCI)  
 Ultra -Tec Uganda Ltd  
 FINAL DRAFT UGANDA STANDARD  FDUS 902: 2011 
 
© UNBS 2011 – All rights reserved  1 
 Self-ballasted lamps for General Lighting Services (GLS)  — 
Performance requirements  
1 Scope  
This standard specifies the performance requirements, together with the test methods and condi tions required 
to show compliance of tubular fluorescent and other gas -discharge la mps with integrated means for controlling 
starting and stable operation (self - ballasted lamps), intended for domestic and similar  general lighting 
purposes, having:  
 a rated  wattage up to 60 W;  
 a rated voltage of 100 V to 250 V;  
 Edison screw or bayonet caps.  
The requirements of this standard relate only to type testing.  
Recommendations for whole product testing or batch testing are under consideration.  
These performance requi rements are additional to the requirements in US IEC 60968  
2 Normative references  
The following referenced documents are indispensable for the application of this document. For dated 
references, only the edition cited applies. For undated references, the l atest edition of the referenced 
document (including any amendments) applies.  
US IEC 60081, Double -capped fluorescent lamps  – Performance specifications  
US IEC 60968, Self-ballasted lamps for General Lighting Services  (GLS)  – Safety requirements  
US IEC 6096 9, Self-Ballasted lamps for General Lighting Services  (GLS)  – Performance requirements  
IEC 61000 -3-2, Electromagnetic Compatibility (EMC) – Part 3 -2: Limits for harmonic current emissions 
(equipment input current ≤ 16A per phase)  
3 Terms and definitions  
For the purposes of this standard, the following terms and definitions shall apply . 
3.1 
self-ballasted lamp  
unit which cannot be dismantled without being permanently damaged provided with a lamp cap and 
incorporatin g a light source and any additional elements necessary for starting and stable operation of the 
light source  FDUS 902: 2011 
2 © UNBS 2011 – All rights reserved  
 3.2 
type 
lamps that, independent of the type of cap, are identical in photometric and electrical rating  
3.3 
rated voltage  
voltage or voltage range marked on the lamp  
3.4 
test voltage  
voltage or voltage range marked on the lamp  
3.5 
rated wattage  
wattage marked on the lamp  
3.6 
rated frequency  
frequency marked on the lamp or declared  as such by the manufacturer or responsible vendor  
3.7 
rated luminous flux 
flux marked on the lamp or declared as such by the manufacturer or responsible vendor  
3.8 
lumen maintenance  
luminous flux at a given time in the life of a lamp divided by the initial value of the luminous flux of the lamp 
and expressed as a percentage  of the initial luminous flux  
3.9 
initial values  
photometric and electrical characteristics at the end of the 100 h ageing period  
3.10 
life (of an individual lamp)  
length of time during which a complete lamp operates to burnout or to any other criterion of  life performance 
laid down in this standard  
3.11 
average life (life to 50 % failures)  
length of time during which 50 % of the lamps reach the end of their individual lives  
3.12 
rated average life (rated life to 50 % failures)  
life declared by the manufact urer or responsible vendor as being the expected time at which 50 % of any large 
number of lamps reach the end of their individual lives  
3.13 
colour  
colour characteristics of a lamp are defined by the colour appearance and the colour rendition  
a) The actual c olour of the lamp is called colour appearance and is defined in terms of the spectral 
tristimulus values (colour co -ordinates) according to the recommendations of the CIE.  
b) The spectral characteristics of the light emitted by the lamp have an effect on the appearance of the 
objects it illuminates; this effect is called colour rendition.  FDUS 902: 2011 
© UNBS 2011– All rights reserved  3 
 3.14 
rated colour  
colour appearance as declared by the manufacturer or responsible vendor, or the colour corresponding to the 
colour designation marked on the lamp  
3.15 
start ing time  
time needed, after the supply voltage is switched on, for the lamp to start fully and remain alight  
3.16 
run-up time  
time needed, after the supply voltage is switched on, for the lamp to reach 80 % of its final luminous flux  
3.17 
stabilization tim e 
burning time of the lamp required to obtain stable operating electrical and photometric characteristics  
3.18 
type test  
test or series of tests made on a type test sample for the purpose of checking compliance of the design of a 
given product with the re quirements of the relevant standard  
3.19 
type test sample  
sample consisting of one or more similar units submitted by the manufacturer or responsible vendor for the 
purpose of the type test  
4 Lamp requirements  
4.1 Dimensions  
The lamp dimensions shall comp ly with the requirements as indicated by the manufacturer or responsible 
vendor but shall not exceed the dimensions indicated in Annex A.  
4.2 Test conditions  
Test conditions for testing electrical and photometric characteristics, lumen maintenance and life  are given in 
Annex B.  
4.3 Starting and run -up 
The starting and run -up time shall comply with the values as indicated by the manufacturer or responsible 
vendor but shall not exceed the provisions in Clause 5. 
4.4 Lamp wattage  
The initial wattage dissipated  by the lamp shall not exceed 115 % of the rated wattage.  
4.5 Luminous flux  
The initial luminous flux measured after the ageing time shall not be less than 90 % of the rated luminous flux.  FDUS 902: 2011 
4 © UNBS 2011 – All rights reserved  
 4.6 Colour  
The colour co -ordinates of a lamp shall be within the to lerance area on the chromaticity chart as declared by 
the manufacturer or responsible vendor, but shall in any case be within 5 SDCM ( Standard Deviation of 
Colour Matching) from the target values. For further information see Annex D of US IEC 60081.  
4.7 Lumen maintenance  
After 2 000 h of operation, including the ageing period, the lumen maintenance shall be not less than the 
value declared by the manufacturer or responsible vendor.  
4.8 Life 
The life to 50 % failures (average life) measured on " n" lamps shal l be not less than the rated life to 50 % 
failures.  ("n" is declared by the manufacturer or responsible vendor, but shall be a minimum of 20 lamps.)  
4.9 Harmonics  
The harmonics of the input current when meas ured in accordance to IEC 61000 -3-2 shall not exc eed the limits  
given in Table 1 below.  
Table 1 — Limits of Harmonics Current  
 
5 Condition of compliance  
5.1 Dimension  
The lamp dimensions shall comply with the requirements as indicated by the manufacturer or vendor or the 
US IEC 60061 -1 for the cap and  US IEC 60901 for the lamp and also with the dimensions in Annex A.  
5.2 Starting time  
A lamp shall start fully and remain alight within the time specified on the relevant lamp data sheet, which in 
either case should not be greater than  1.5 s. 
5.3 Run-up time  
The run -up time shall not be more than 90 s.  FDUS 902: 2011 
© UNBS 2011– All rights reserved  5 
 5.4 Power factor  
The power factor shall not be less than 0.90 for each lamp.  
5.5 Lumen maintenance  
5.5.1  1,000 -hour lumen maintenance shall not be less than:  
a) the value declared by the manufacturer or vendor,  and 
b) 90 % of the initial luminous flux . 
5.5.2  2,000 -hour lumen maintenance shall not be less  
a) the value declared by the manufacturer or responsible vendor,  and 
b) 88 % of the initial luminous flux  
5.6 Life time 
CFLs shall have a minimum rated life of not less tha n 6 000 hours.  
5.7 Audible noise 
Ballast if included must have sound rating of Class A or quieter.  
5.8 Stabilization time 
The time to 75 % stabilized light output, after switch -on shall be less than 100 sec.  
5.9 Fast switching life eva luation  
The number of  cycles in the rapid cycle test shall not be less than twice the claimed lamp life in hours.   
For CFLs which last less than 10 000 hours it is reasonable to accept also less than 20 000 cycles. It is 
acknowledged that there is no physical relation between  the number of cycles and the life in hours.  
6 Efficacy  
The efficacy of CFLs shall comply with the table below.  
                                                   
 The target value has been derived from 10 000 hours CFLs for which a minimu m of 20 000 cycles is generally used.  FDUS 902: 2011 
6 © UNBS 2011 – All rights reserved  
 Table 2 —Efficacy of CFLs  
Configuration 1) Lamp Power (Watts)  Minimum efficacy (Lumen/W) 
based upon initial Lumen data²) 
Bare Lamp  <15 
≥15 ≥ 45 
≥ 60 
Covered  (no reflector)  <15 
15 ≤ LP < 19  
19 ≤ LP < 25  
LP ≥ 25  ≥ 40 
≥ 48 
≥ 50 
≥ 55 
With reflector  < 20 
> 20 ≥ 33 
≥ 40 
¹) Take performance and electrical requirements at the end of the 100 -hour aging period. The lamp efficacy shall be the ave rage of 
the lesser of the lumens per watt measured in the base up an / or other specified positions. Use wattages placed on packaging  to 
select proper specification efficacy in this table, not measured wattage. Labelled wattages are for reference only.  
²) Efficacies are based on measured values for lumens and wattages from the pertinent test data. Wattages and lumens placed on 
packages may not be used in calculation and are not governed by this specification.  
 
7 Labelling  
7.1 All lamps shall have the follo wing information clearly printed on the package.  
a) life, of the lamp in hours, as measured per US IEC 60969 shall be shown on the individual package of 
each lamp ; 
b) an appropriate energy label satisfying the provisions of Uganda Energy Guide Label shall be sho wn 
on the individual package of each lamp.  
c) comparison CFL/GLS . Where the packaging or other literature claims that the rated luminous flux of 
the CFL is equivalent to, or exceeds that, of an equivalent GLS filament lamp, the lamp rating must 
comply with th e following  requirements, measured in accordance with US IEC 60969 and IEC 60064 
or equivalent.  
d) Power output shall be shown on the individual packet of each lamp .  
7.2 Lamps shall be clearly and durably marked with the following mandatory markings:  
a) mark of  origin (this may take the form of a trade mark, the manufacturer's name or the, name of the 
responsible vendor ); 
b) rated voltage or voltage range (marked "V" or "volts "); 
c) rated wattage (marked "W" or "watts "); and  
d) rated frequency (marked in "Hz").  
In additi on the following information shall be given by the lamp manufacturer either on the lamp or packing or 
in installation instructions:  
a) Lamp current ; 
b) Burning position if restricted ; FDUS 902: 2011 
© UNBS 2011– All rights reserved  7 
 c) For lamps with a weight significantly higher than that of the lamps for which they are a replacement, 
attention should be drawn to the fact that the increased weight may reduce the mechanical stability of 
certain luminaries ; and  
d) Special conditions or restrictions which shall be observed for lamp operation, for example, operation 
in dimming circuits. Where lamps are not suitable for dimming, the following symbol may be used:  
 
 
Table 3 — Comparison of CFL/GLS  
 
CFL initial Lumen Claim  
Lm CFL equivalent wattage  
W Rated wattage(s) of the GLS filament 
lamp for which equivalent is claimed  
W 
> 214  
> 386 
> 660 
> 874 
> 1246  
> 2009  7 
9 
11 
15 
20 
25 < 25 
< 40 
< 60 
< 75 
< 100 
< 150 
NOTE  If there is no common GLS filament lamp wattage which fits the requirement:  
* Either the CFL is compared to an interpolated GLS filament wattage value’ or  
*if the rated luminous flux is within 5 % below the value in the left column of the table above, for commercially available GLS la mps the 
lamp wattage may be quoted along the following lines: “ --------  Lower but near to X watts GLS “  
 FDUS 902: 2011 
8 © UNBS 2011 – All rights reserved  
 8 Conformance criteria  
Table 4 — Conformance criteria  
Parameter  Sample size  Qualifying limit 
 
 
Lumen Maintenance  A minimum of five (5)  
lamps tested in the  base 
up position  unless the 
product is  labelled as a  
position - restricted  The average of at least five (5) 
lamps must be a m inimum  90 % of 
initial (100  h) lumen output at 1,000 
h of rated life  
 
 
Starting time  
 
Run-up time  
 
Power factor  
 
Efficiency   
 
 
Minimum of five (5)  The average of at least 5  lamps 
should not be :  
< 1.5 s  
 
< 90 s  
 
≥ 0.90  
 
less than the values stated in 
column 3 of Table 2 
Average rated life  Minimum of ten (10)  per 
model,  5 base  up, and 5 
base down  unless 
specific use  of position 
appears  on the packaging   One failure acceptable  
Two failure requires  justification  
Three failure – non compliance  
Rapid cycle st art test  Minimum of six (6)  At least 5 lamps must m eet or 
exceed the minimum  number of 
cycles  
 
 
9 Guarantee and q uality  
9.1 Guarantee to customer   
Customers must be given a one year guarantee on lamp failure.  
9.2 Quality of production  
Lamps shall be manuf actured under a Quality assurance System in accordance with US ISO 9002 or 
equivalent . 
10 Climatic compliance  
The CFL shall be suitable for use in tropical climates and shall withstand humidity levels of up 95  % and 
ambient temperatures of 40  °C. FDUS 902: 2011 
© UNBS 2011– All rights reserved  9 
 Annex  A 
(normative)  
 
Lamp size (Geometric)  
To ensure that the lamps would be suitable for use in existing luminaries, the geometrical parameters of the 
lamps with wattages in column one shall not be more than the dimensions and weights given in columns two 
to four.  
Table A -1 — The geometrical parameters of lamps  
 
Lamp Wattage , 
W Length/height , 
mm Base diameter , 
mm Weight , 
g 
7 - 9 130 ± 3 46 ± 2  65 ± 3 
11 - 13 140 ± 3 46 ± 2  70 ± 3 
15 - 16 142 ± 3 53±2  92 ± 3 
20 - 21 155 ± 3 53±2  92 ± 3 
 FDUS 902: 2011 
10 © UNBS 2011 – All rights reserved  
 Annex  B 
(informative)  
 
Method of measuring lamp characteristics  
B.1 General  
All tests shall be made in a draught -proof room at an ambient temperature of (25  ± 1) °C and a relative 
humidity of 65 % maximum.  
The test voltage shall be stable within ± 0.5 %, during stabilization periods, this tolerance being reduced to ± 
0.2 % at the moment of measurements. For life testing the tolerance is 2 %. The total harmonic content of the 
supply voltage shall not exceed 3 %1). The harmonic cont ent is defined as the r.m.s. summation of the 
individual harmonic components using the fundamental as 100 %.  
All tests shall be carried out at rated frequency. Unless otherwise specified for a specific purpose by the 
manufacturer or responsible vendor, lam ps shall be operated in free air in a vertical base -up position for all 
tests including life tests.  
Electrical and photometric instruments used shall be selected having a guaranteed accuracy commensurate 
with the requirements of the test.  
B.2  Starting and  run-up 
The starting and run -up tests shall be made before ageing except in the case of lamps declared by the 
manufacturer to be VPC (Vapour Pressure Control) types, where the following procedure shall be carried out.  
VPC lamps are aged for a period of at least 100 h of normal operation and then switched off for at least 24 h 
before the run -up test is performed. The starting test for VPC lamps shall be performed both before ageing 
and at the commencement of the run -up test.  
The test voltage for the starting  test shall be equal to 92 % of the rated voltage or, in case of a voltage range, 
92 % of the minimum value of that range.  
For run -up the test voltage is increased to the rated voltage or in the case of a lamp with a voltage range 
increased to the mean val ue of the voltage range.  
B.3 Electrical and photometric characteristics  
B.3.1 Test voltage  
The test voltage shall be the rated voltage. In the case of a voltage range, measurements shall be carried out 
at the mean value.  
B.3.2  Ageing  
Lamps shall have been aged for a period of 100 h of normal operation.  
                                                   
1) For some self -ballasted lamps a lower value is necessary for proper electrical and photometric 
measurements.  
 FDUS 902: 2011 
© UNBS 2011– All rights reserved  11 
 B.3.3  Stabilization time  
Lamps shall be measured at the test voltage immediately after the stabilization period as stated by the 
manufacturer  or responsible vendor.  
B.4 Lamp life and lumen maintenance  
B.4.1  Ambient  
Ambient temperature shall be kept within the range of 15 °C to 40 °C. Excessive draught should be avoided 
and the lamps should not be subjected to extreme vibration and shocks.  
These conditions are under consideration.  
B.4.2  Test voltage  
The test vo ltage shall be the rated voltage with a tolerance of ±  2 %. In the case of a voltage range,  
measurements shall be carried out at the mean value.  
B.4.3  Switching on and off  
Lamps on lumen maintenance and life test shall be switched off eight times in every 24 h running. The "off'” 
period shall be between 10 min and 15 min. The "on" period shall be at least 10 min.  
B.4.4  Establishing of average life  
The average life shall be derived from a test quantity of at least 20 lamps.  FDUS 902: 2011 
12 © UNBS 2011 – All rights reserved  
 Bibliography  
[1] US IEC 60969, S elf-ballasted lamps for general lighting services - Performance requirements  
[2] US IEC 60081,  Double - capped fluorescent lamps - Performance specifications  
[3] US IEC 60968, Self-ballasted lamps for general lighting services - Safety requirements  
 
 FDUS 902: 2011 
© UNBS 2011 – All rights reserved  13 
 Certifica tion marking  
Products that conform to Uganda standards may be marked with Uganda National Bureau of Standards 
(UNBS) Certification Mark shown in the figure below.  
The use of the UNBS Certification Mark is governed by the Standards Act, and the Regulations  made 
thereunder. This mark can be used only by those licensed under the certification mark scheme operated by 
the Uganda National Bureau of Standards and in conjunction with the relevant Uganda Standard. The 
presence of this mark on a product or in relati on to a product is an assurance that the goods comply with the 
requirements of that standard under a system of supervision, control and testing in accordance with the 
certification mark scheme of the Uganda National Bureau of Standards. UNBS marked product s are 
continually checked by UNBS for conformity to that standard.  
Further particulars of the terms and conditions of licensing may be obtained from the Director, Uganda 
National Bureau of Standards.  
 
 FDUS 902:2011   
 
ICS nn.nnn.nn  
Price based on nn pages  
© UNBS 2011 – All rights reserved