1. Scope

This standard (Part 2) specifies the performance requirements, together with the test methods and conditions, required to show compliance of LED lamps with integral means for stable operation, intended for domestic and similar general lighting purposes, having:

a) a rated power from 1 W to 25 W;

b) a rated voltage above 50 V ac up to and including 250 V ac at 50 Hz;

c) a lamp cap as listed in IS 16102 (Part 1): ‘SelfballastedLED lamps for general lighting services: Part 1 Safety requirements’.

These performance requirements are additional to the safety requirements specified in IS 16102 (Part 1).

The only feature provided by this standard, when applied for replacement purposes, is information on maximum lamp outlines.

The requirements of this standard relate to acceptance and type testing.

This standard covers LED lamps that intentionally produce white light, based on inorganic LEDs. This standard does not cover self-ballasted LED-lamps that intentionally produce tinted or coloured light neither does it covers OLEDs.

The life time of LED lamps is in most cases much longer than the practical test times. Consequently, verification of manufacturer’s life time claims cannot be made in a sufficiently confident way, because projecting test data further in time is not standardized. For that reason the acceptance or rejection of a manufacturer’s life time claim, past an operational time as stated in 7.1, is out of the scope of this standard.

Instead of life time validation, this standard has opted for lumen maintenance codes at a defined finite test time. Therefore, the code number does not imply a prediction of achievable life time. The categories, represented by the code, are lumen-depreciation character categories showing behaviour in agreement with manufacturer’s information, provided before the test is started.

In order to validate a life time claim, several methods of test data extrapolation exist. A general method of projecting measurement data beyond limited test time is under consideration.

The pass/fail criterion of the life time test as defined in this standard is different from the life time metrics claimed by manufacturers.

NOTES

1 When lamps are operated in a luminaire, the claimed performance data can deviate from the values established from this standard due to variation or changes in the luminaire components that might impact the performance of the lamp.

2 Higher wattage lamps are under consideration. It can be expected that self-ballasted LED lamps, which comply with this standard will start and operate satisfactorily at voltages between 90 percent and 110 percent of rated supply voltage and at an ambient air temperature between -10°C and 40°C and in a luminaire complying with IS 10322 (Part 1).

If the manufacturer or the responsible vendor claims suitability for operation at different conditions, for instance, at higher voltage, temperature or humidity then lamps shall start and operate satisfactorily under claimed different conditions and the same shall be verified by tests.

2. REFERENCES

The following Indian Standards with latest versions/amendments, if any, are necessary adjunct to this standard.

IS No. Title

1885 (Part16/Sec 1) : 1968 Electrotechnical vocabulary : Part 16 Lighting, Section 1 General aspects

2418 (Part 2) Tubular fluorescent lamps for general lighting service: Part 2 Performance requirements (under print)

6873 (Part 5) : 2012 Limits and methods of measurement of radio disturbance characteristics : Part 5 Electrical lighting and similar equipment (second revision)

9000 (Part 14/Sec 1) Basic environmental testing procedures for electronic and electrical items: Part 14 Test N: Change of temperature, Section 1 Test Na: Rapid change of temperature (thermal shock) with prescribed time of transition - Two chamber method (first revision)

14700 (Part 3/Sec 2) : 2008 Electromagnetic compatibility: Limits, Section 2 Limits for harmonic current emissions (first revision)

(Part 4/Sec 7) : 2006 Testing and measurement techniques, Section 7 General guide on harmonic and inter - harmonics measurements and instrumentation, for power supply systems and equipment connected thereto

16101 : 2012 General lighting - LEDs and LED modules - Terms and definitions

16102 (Part 1) : 2012 Self ballasted LED lamps for general lighting services: Part 1 Safety requirements

16105 : 2012 Method of measurement of lumen maintenance of solid - state light (LED) sources

16106 : 2012 Method for the electrical and photometric measurements of solidstate lighting (LED) products

IS/IECTR 61341 : 2010 Method of measurement of centre beam intensity and beam angle(s) of reflector lamps