Mike Simpson (1.6mb – PPT)

Standards, legislation and guidance briefing

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3

Directives

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LED Standardisation in IEC

IEC 62717 Performance standard for LED modules 2014

IEC 62722-2-1 LED-luminaire performance requirements 2014

LED Lumen Maintenance Projection

IEC 62861 LED Principal component reliability 2015

20??

2

LED Standardisation in IEC

2

IEC 62717 Performance standard for LED modules

IEC 62722-2-1 LED-luminaire performance requirements

LED Lumen Maintenance Projection

IEC 62861 LED Principal component reliability

IEC Definition of Life

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7

Useful Life and expressed in general as LxBy 100%

e.g, Useful Life (L70B50) = 50,000h

Relative luminous flux

90%

80%

7 0

7 0

70%

5 0

6 5

7 0

6 5

7 0

6 0

6 5

7 0

5 5

6 0

6 5

7 0

5 5

6 0

6 5

7 0

7 5

7 5

7 5

8 0

7 5

8 0

7 5

8 0

8 5

8 5

9 0

60%

50%

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B50

L70

10k

20k

30k

40k

50k

60k

Rated Median Useful Life is for the specific case when we have B50 we call this Median Useful Life Lx

100%

e.g, Median Useful Life (L70) = 50,000h

Relative luminous flux

90%

80%

7 0

7 0

70%

5 0

6 5

7 0

6 5

7 0

6 0

6 5

7 0

5 5

6 0

6 5

7 0

5 5

6 0

6 5

7 0

7 5

7 5

7 5

8 0

7 5

8 0

8 5

7 5

8 0

8 5

9 0

60%

50%

5

B50

L70

10k

20k

30k

40k

50k

60k

The abrupt light output degradation of a population of LED modules at a certain point in time is called Time to Abrupt Failure and expressed as Cy e.g, Time to Abrupt Failure (C10) = 53,000h 7 0 7 0

100%

0

6 5

7 0

7 5

6 5

7 0

7 5

6 0

6 5

7 0

7 5

8 0

0

6 0

6 5

7 0

7 5

8 0

8 5

0

6 0

6 5

7 0

7 5

8 0

8 5

7 0 7 0

9 0 6 0

0

6 5

7 0

7 5

6 5

7 0

7 5

6 5

7 0

7 5

8 0

0

6 0

6 5

7 0

7 5

8 0

8 5

0

6 0

6 5

7 0

7 5

8 0

8 5

7 0

9 0

% Survors

7 0

90%

0

6 5

7 0

7 5

6 5

7 0

7 5

6 0

6 5

7 0

7 5

8 0

0

6 0

6 5

7 0

7 5

8 0

8 5

0

6 0

6 5

7 0

7 5

8 0

8 5

9 0

80%

10k

20k

30k

Time to Abrupt Failure 6

40k

50k

53k

60k

The Rated Abrupt Failure Value (AVF) is the percentage of LED products failing to operate at the Median Useful Life Lx

e.g, Rated Abrupt Failure Value(AVF) @ 50kh = 8%

100% 7 0 7 0

92% 90%

0

6 5

7 0

7 5

6 5

7 0

7 5

6 0

6 5

7 0

7 5

8 0

0

6 0

6 5

7 0

7 5

8 0

8 5

0

6 0

6 5

7 0

7 5

8 0

8 5

9 0

80%

10k

20k

30k

Time to Abrupt Failure 7

40k

50k

60k

Overview of Lifetime Metrics

For Product Makers

LED modules & LED luminaires

LED lamps

gradual light output degradation

abrupt light output degradation

named:

named:

named:

Time to Abrupt Failure (Cy)

LED Lamp Life (MxFy)

Useful Life (Lx By) # hrs @ x% light with y % of the population failed

# hrs @ y% abrupt failures

combined gradual & abrupt light output degradation

to allow all combinations possible

# hrs @ x% of light including abrupt failures with y % of the population failed

For Marking and Publication

informative

for y=50 named:

at rated MUL named:

Median Useful Life (Lx)

Abrupt Failure Value (AFV)

# hrs @ x% light for 50% of the population

% abrupt failures @ Lx

for y=50 named:

Median LED Lamp Life (Mx) # hrs @ x% of light including abrupt failures for 50% of the population

at rated MUL named: Combined Failure Value (CFV) % combined failures @ Lx

normative

to limit # combinations communicated

LED Standardisation in IEC

2

IEC 62717 Performance standard for LED modules

IEC 62722-2-1 LED-luminaire performance requirements

LED Lumen Maintenance Projection

IEC 62861 LED Principal component reliability

Type A – Luminaires using LED modules where compliance with IEC 62717 has been proven.

Type B – Luminaires using LED modules where compliance with IEC 62717 has not been proven.

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Rated input power (in W) Photometric code Rated luminous flux (in lm)

Rated Median Useful life (h) and the associated rated lumen maintenance factor (x) Rated Abrupt Failure Value (%) Lumen maintenance code Rated chromaticity co-ordinate values both initial and maintained Rated correlated colour temperature (CCT in K) Rated colour rendering index (CRI) Rated ambient temperature (tq) related to performance for a luminaire (°C) Rated LED luminaire luminous efficacy (in lm/W) Ageing time, if different from 0 h

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LED Standardisation in IEC

2

IEC 62717 Performance standard for LED modules

IEC 62722-2-1 LED-luminaire performance requirements

LED Lumen Maintenance Projection

IEC 62861 LED Principal component reliability

HALT (Highly Accelerated Life Testing) LED Modules tested until -60/+140 ºC

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HALT (Highly Accelerated Life Testing) Humidity test

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LED Standardisation in IEC

2

IEC 62717 Performance standard for LED modules

IEC 62722-2-1 LED-luminaire performance requirements

LED Lumen Maintenance Projection

IEC 62861 LED Principal component reliability

LED Standardisation in IEC

LED Lumen Maintenance Projection

LED Lumen Maintenance Projection

2

LM80

IEC 62717 Performance standard for LED modules

6000h

IEC 62722-2-1 LED-luminaire performance requirements

Type test

A

LM80

IEC 62717 Performance standard for LED modules

IEC 62722-2-1 LED-luminaire performance requirements

6000h

6000h

B

IEC 62861 LED Principal component reliability

1000h

New work from EU mandates interconnections between components and LED device at the LED luminaire and lighting systems level; interoperability of thermal, electrical, photometrical and mechanical interfaces

LED street lighting application performance

interconnections between components, and LED module control gear and LED module at the LED systems level

power factor in terms of the distortion and displacement components

interconnection between LED lighting systems and other lighting systems in indoor and outdoor environments interoperability between LED luminaire and lighting systems and energy management systems 20