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LED Life

LEDs are not all created equal and there still seems to be confusion in the market in respect of how to determine the performance and life of different LED luminaires.  We thought we’d help shed some light on this by sharing some valuable insights and resources​ on LED Life.



Unios Universal Light – Edition 2


Unios have just released the 2nd edition of this educational journal.  Among the many interesting articles is the lead story titled ‘The Meaning of LED Life’ written by our own MHL National Product Manager, Mark Kirkham. In this article, Mark provides guidance on assessing the long-term performance of LED products. Use the links below to learn more





‘TO B OR NOT TO B’ … that is the question’!


Leading on from the above is the evolution of the metrics used to define LED life.  It seems as if the ‘b’ metric may be on the way out, or is it? The following information might help to answer that question.


There remains confusion and debate in the market with respect to life metrics for LED luminaires. So let’s take a closer look at the two options; L-Metric and B-Metric.



‘L’ Metric


The primary life metric has always been, and remains, the ‘L’ metric. Per IEC 62722, the ‘L’ metric quantifies the luminous flux degradation after a certain period of time.


  • Lx where ‘x’ denotes the predicted percentage of the initial luminous flux of 50% of the LED population (median) after a certain period of time
    • For example: L70 50,000hrs – luminous flux output of 50% of the LED population (median) has reduced to 70% of initial after 50,000 hrs operation
  • IEC defines this as ‘Median Useful Life’
  • This is effectively Lx B50  if the B Metric (below) was to be included


‘B’ Metric


The IEC has also introduced a second ‘B’ metric in an attempt to further define the ‘L’ metric. 


  • Lx By where ‘y’ denotes an alternative proportion of the LED population at which the luminous flux has degraded after a certain period of time
    • For example: L70 B10 50,000hrs – luminous flux output when only the first 10% of the LED population has reduced to 70% of initial after 50,000 hrs operation

    Whilst IEC 62722-2-1 defines this By, it does not prescribe how this is derived.  In the absence of this, there is a wide variation in how this is assessed and corresponding inconsistency in the life claims made incorporating it. 


    Unfortunately, there has been no consistency across manufacturers in the way life predictions are reported. Many manufacturers only provide ‘L’ metrics (ie: no B metric).  As noted above, in the absence of the second ‘B’ metric these are deemed to be ‘B50’. Many other manufacturers only quote life at other ‘B’ values … ‘B10’ being the most common. This inconsistency creates confusion and prevents accurate performance comparisons between products.



    Lighting Europe: Evaluating performance of LED based luminaires – Guidance Paper


    Lighting Europe is an industry association that represents the European lighting industry. With over 1000 members, including many of the larger lighting manufacturers (including TRILUX), Lighting Europe’s aim is to advocate and influence European lighting policies and standards.


    Lighting Europe has recently released a report to provide guidance in the evaluation of the performance of LED luminaires.


    Until recently, many people have believed there to be a large difference in life hours at different B values. It is therefore very interesting to see this guide has concluded there is actually no statistically relevant difference between LxB50 & LxB10 figures. On the basis of this, many manufacturers are reverting to reporting lifetimes without a B metric.


    We believe this is a great step forward as it will simplify performance reporting and provide a common basis upon which real apples-for-apples performance comparisons can be made.


    Note, this guidance paper is not a standard but does however represent the collective belief of the 1000+ lighting manufacturer members of Lighting Europe. It is quite likely the findings from this will be incorporated into IEC standards in the future. 


LED Life

LEDs are not all created equal and there still seems to be confusion in the market in respect of how to determine the performance and life of different LED luminaires.  We thought we’d help shed some light on this by sharing some valuable insights and resources​ on LED Life.



Unios Universal Light – Edition 2


Unios have just released the 2nd edition of this educational journal.  Among the many interesting articles is the lead story titled ‘The Meaning of LED Life’ written by our own MHL National Product Manager, Mark Kirkham. In this article, Mark provides guidance on assessing the long-term performance of LED products. Use the links below to learn more





‘TO B OR NOT TO B’ … that is the question’!


Leading on from the above is the evolution of the metrics used to define LED life.  It seems as if the ‘b’ metric may be on the way out, or is it? The following information might help to answer that question.


There remains confusion and debate in the market with respect to life metrics for LED luminaires. So let’s take a closer look at the two options; L-Metric and B-Metric.



‘L’ Metric


The primary life metric has always been, and remains, the ‘L’ metric. Per IEC 62722, the ‘L’ metric quantifies the luminous flux degradation after a certain period of time.


  • Lx where ‘x’ denotes the predicted percentage of the initial luminous flux of 50% of the LED population (median) after a certain period of time
    • For example: L70 50,000hrs – luminous flux output of 50% of the LED population (median) has reduced to 70% of initial after 50,000 hrs operation
  • IEC defines this as ‘Median Useful Life’
  • This is effectively Lx B50  if the B Metric (below) was to be included


‘B’ Metric


The IEC has also introduced a second ‘B’ metric in an attempt to further define the ‘L’ metric. 


  • Lx By where ‘y’ denotes an alternative proportion of the LED population at which the luminous flux has degraded after a certain period of time
    • For example: L70 B10 50,000hrs – luminous flux output when only the first 10% of the LED population has reduced to 70% of initial after 50,000 hrs operation

    Whilst IEC 62722-2-1 defines this By, it does not prescribe how this is derived.  In the absence of this, there is a wide variation in how this is assessed and corresponding inconsistency in the life claims made incorporating it. 


    Unfortunately, there has been no consistency across manufacturers in the way life predictions are reported. Many manufacturers only provide ‘L’ metrics (ie: no B metric).  As noted above, in the absence of the second ‘B’ metric these are deemed to be ‘B50’. Many other manufacturers only quote life at other ‘B’ values … ‘B10’ being the most common. This inconsistency creates confusion and prevents accurate performance comparisons between products.



    Lighting Europe: Evaluating performance of LED based luminaires – Guidance Paper


    Lighting Europe is an industry association that represents the European lighting industry. With over 1000 members, including many of the larger lighting manufacturers (including TRILUX), Lighting Europe’s aim is to advocate and influence European lighting policies and standards.


    Lighting Europe has recently released a report to provide guidance in the evaluation of the performance of LED luminaires.


    Until recently, many people have believed there to be a large difference in life hours at different B values. It is therefore very interesting to see this guide has concluded there is actually no statistically relevant difference between LxB50 & LxB10 figures. On the basis of this, many manufacturers are reverting to reporting lifetimes without a B metric.


    We believe this is a great step forward as it will simplify performance reporting and provide a common basis upon which real apples-for-apples performance comparisons can be made.


    Note, this guidance paper is not a standard but does however represent the collective belief of the 1000+ lighting manufacturer members of Lighting Europe. It is quite likely the findings from this will be incorporated into IEC standards in the future. 


TRILUX Roadshow & New Products


MHL were excited to host our German friends in June for a national roadshow. Manfred Jander, TRILUX’s Export Manager for our region, visited us for ninw days covering Auckland, Waikato, Bay of Plenty, Wellington and Christchurch.


The roadshow launched two exciting new TRILUX product ranges, the E-Line NEXT which is the evolution of the already very successful E-Line linear range and Sonnos, a new comprehensive range of downlights with over 70,000 permutations!



TRILUX E-Line NEXT



E-Line Next boasts an industry-leading 190 lumens (delivered) / watt (input) and 15 optics which gives incredible flexibility for multiple applications.

Some of the highlights include:

  • Trunking based linear lighting system
  • 3 trunking options
  • 230,000+ permutations configurable




TRILUX Sonnos



The Sonnos range also impressed and has been designed to mimic natural daylight, hence the name taken from the German word for sun ‘Sonne’. Sonnos is perfect for a wide range of commercial and institutional applications where quality of light and flexibility are critical.

Some of the highlights include:

  • 70,000+ possible permutations configurable
  • L90 50,000 hr / L80 70,000 hr life
  • sequential packaging for ease of installation




Overall, the roadshow was a huge success and the new products were very well received. And we gave our German guest some good ‘ol kiwi hospitality with a round of golf and a wine or two. We’re already looking forward to his next trip in November 2020.

TRILUX Roadshow & New Products


MHL were excited to host our German friends in June for a national roadshow. Manfred Jander, TRILUX’s Export Manager for our region, visited us for ninw days covering Auckland, Waikato, Bay of Plenty, Wellington and Christchurch.


The roadshow launched two exciting new TRILUX product ranges, the E-Line NEXT which is the evolution of the already very successful E-Line linear range and Sonnos, a new comprehensive range of downlights with over 70,000 permutations!



TRILUX E-Line NEXT



E-Line Next boasts an industry-leading 190 lumens (delivered) / watt (input) and 15 optics which gives incredible flexibility for multiple applications.

Some of the highlights include:

  • Trunking based linear lighting system
  • 3 trunking options
  • 230,000+ permutations configurable




TRILUX Sonnos



The Sonnos range also impressed and has been designed to mimic natural daylight, hence the name taken from the German word for sun ‘Sonne’. Sonnos is perfect for a wide range of commercial and institutional applications where quality of light and flexibility are critical.

Some of the highlights include:

  • 70,000+ possible permutations configurable
  • L90 50,000 hr / L80 70,000 hr life
  • sequential packaging for ease of installation




Overall, the roadshow was a huge success and the new products were very well received. And we gave our German guest some good ‘ol kiwi hospitality with a round of golf and a wine or two. We’re already looking forward to his next trip in November 2020.

Meet our New MHL Team Members

Over the last few months, we have added three awesome new members to the MHL team and we thought it’s time to officially introduce them.

 

Suganya Gopal_180x

Suganya Gopal – Project Coordinator

MHL

Suganya is our new Project Coordinator. She works with the team to make sure we deliver the best quality products and services to our customers in the quickest time possible.

Having worked in the Lighting Industry, Suganya is highly experienced and knowledgable and has hit the ground running. She has worked in India and the United Arab Emirates before making New Zealand her home. When she’s not working, Suganya enjoys crafts, decorating, baking and designing her own clothes.

MHL

MHL

Dave_180x for website

Dave McCalman – Lighting Consultant

MHL

Dave joined the MHL team last year as Lighting Consultant looking after Bay of Plenty and Waikato region, with a couple of key accounts in Auckland.

He brings a valuable 15 years of experience in the Lighting Industry to the MHL team and has completed the Graduate Certificate in Science and Technology (Lighting) from Massey University.

Outside of work Dave enjoy heading out on the mountain bike to stretch the legs, and he has also just become a dad to Thomas which is keeping him young at heart albeit also a bit tired!

Simon Hadlow_180x

Simon Hadlow – Lighting Consultant

MHL

Simon joined the MHL team in September last year as our Lighting Consultant in Wellington looking after MHL clients and projects in the Capital City.

Simon has a Graduate Certificate in Science and Technology (Lighting) from Massey University and has been working in the Lighting Industry for five years. He brings great experience and expertise to the MHL team. In his spare time, Simon enjoys the outdoors, fishing and hunting.

If you need help with a lighting project in Wellington, get in touch with Simon via email: simon.hadlow@lights.co.nz

 

Meet our New MHL Team Members

Over the last few months, we have added three awesome new members to the MHL team and we thought it’s time to officially introduce them.

 

Suganya Gopal_180x

Suganya Gopal – Project Coordinator

MHL

Suganya is our new Project Coordinator. She works with the team to make sure we deliver the best quality products and services to our customers in the quickest time possible.

Having worked in the Lighting Industry, Suganya is highly experienced and knowledgable and has hit the ground running. She has worked in India and the United Arab Emirates before making New Zealand her home. When she’s not working, Suganya enjoys crafts, decorating, baking and designing her own clothes.

MHL

MHL

Dave_180x for website

Dave McCalman – Lighting Consultant

MHL

Dave joined the MHL team last year as Lighting Consultant looking after Bay of Plenty and Waikato region, with a couple of key accounts in Auckland.

He brings a valuable 15 years of experience in the Lighting Industry to the MHL team and has completed the Graduate Certificate in Science and Technology (Lighting) from Massey University.

Outside of work Dave enjoy heading out on the mountain bike to stretch the legs, and he has also just become a dad to Thomas which is keeping him young at heart albeit also a bit tired!

Simon Hadlow_180x

Simon Hadlow – Lighting Consultant

MHL

Simon joined the MHL team in September last year as our Lighting Consultant in Wellington looking after MHL clients and projects in the Capital City.

Simon has a Graduate Certificate in Science and Technology (Lighting) from Massey University and has been working in the Lighting Industry for five years. He brings great experience and expertise to the MHL team. In his spare time, Simon enjoys the outdoors, fishing and hunting.

If you need help with a lighting project in Wellington, get in touch with Simon via email: simon.hadlow@lights.co.nz

 

Case Study: Te Hauauru Park

MHL is proud to have been chosen to work alongside Isthmus Architects to come up with a lighting solution for Auckland Council’s new Te Hauauru Park in Westgate, Auckland.

 

The fitting of choice was the WE-EF FLC121 12W spotlight and these were used to throw light across all pathways of the park. Traditionally conventional street lighting luminaires are used to light spaces such as parks and pathways, where vertical illuminance (P2) is required. However, through clever design & advanced LED optics we were able to achieve illuminance subcategory P2 using WE-EF FLC spotlights mounted at various heights and angles. This creates a different, more interesting look of light fittings throughout the public space compared to conventional street lighting.

 

Here are some photos of the result.

2A4A7535-2 2A4A7566-17 2A4A7569-20 2A4A7599-37 DJI_0432 DJI_0441 2A4A7564-16 2A4A7559-14

Case Study: Te Hauauru Park

MHL is proud to have been chosen to work alongside Isthmus Architects to come up with a lighting solution for Auckland Council’s new Te Hauauru Park in Westgate, Auckland.

 

The fitting of choice was the WE-EF FLC121 12W spotlight and these were used to throw light across all pathways of the park. Traditionally conventional street lighting luminaires are used to light spaces such as parks and pathways, where vertical illuminance (P2) is required. However, through clever design & advanced LED optics we were able to achieve illuminance subcategory P2 using WE-EF FLC spotlights mounted at various heights and angles. This creates a different, more interesting look of light fittings throughout the public space compared to conventional street lighting.

 

Here are some photos of the result.

2A4A7535-2 2A4A7566-17 2A4A7569-20 2A4A7599-37 DJI_0432 DJI_0441 2A4A7564-16 2A4A7559-14

WE-EF joins Fagerhult Group – MHL to continue as NZ Distributor

WE-EF joins Fagerhult Group               

As you might have heard, leading German lighting manufacturer WE-EF has announced that they will join the Stockholm based Fagerhult Group.

As WE-EF products are very well known in NZ, we wanted to give you an update on what this acquisition means for WE-EF in New Zealand. In short, nothing changes.

 

MHL will continue to be the New Zealand Distributor for WE-EF products. Ian Cerfontyne, Managing Director WE-EF LIGHTING Australia/New Zealand confirms “Management of WE-EF Australia/New Zealand will continue as it is today, with the sales structure remaining as it is currently. With reference to WE-EF’s use of the current Fagerhult distribution network it is important to clarify: this is explicit to those markets where WE-EF does not have its own businesses or sales networks.”

 

In fact, the acquisition is likely to have a positive impact for both MHL and you, our customers. Fagerhult’s global network and extensive resources for product development will open up new opportunities for the brand while the existing WE-EF team and partner network will ensure consistency and continuously high quality products and services. As Ian says: Fagerhult are seen as the perfect partner for us, they are very much a ‘buy and leave alone’ acquisition business, whilst at the same time being a global player with considerable resources for growth and product development.”

For us, this is great news to start the year with and we are looking forward to seeing exciting new products and technology from the newly strengthened WE-EF.

 

Don’t hesitate to contact us if you have any questions about this or would like to discuss your next lighting project with us.

 

All the Best

Mark Herring & The MHL Team.

WE-EF joins Fagerhult Group – MHL to continue as NZ Distributor

WE-EF joins Fagerhult Group               

As you might have heard, leading German lighting manufacturer WE-EF has announced that they will join the Stockholm based Fagerhult Group.

As WE-EF products are very well known in NZ, we wanted to give you an update on what this acquisition means for WE-EF in New Zealand. In short, nothing changes.

 

MHL will continue to be the New Zealand Distributor for WE-EF products. Ian Cerfontyne, Managing Director WE-EF LIGHTING Australia/New Zealand confirms “Management of WE-EF Australia/New Zealand will continue as it is today, with the sales structure remaining as it is currently. With reference to WE-EF’s use of the current Fagerhult distribution network it is important to clarify: this is explicit to those markets where WE-EF does not have its own businesses or sales networks.”

 

In fact, the acquisition is likely to have a positive impact for both MHL and you, our customers. Fagerhult’s global network and extensive resources for product development will open up new opportunities for the brand while the existing WE-EF team and partner network will ensure consistency and continuously high quality products and services. As Ian says: Fagerhult are seen as the perfect partner for us, they are very much a ‘buy and leave alone’ acquisition business, whilst at the same time being a global player with considerable resources for growth and product development.”

For us, this is great news to start the year with and we are looking forward to seeing exciting new products and technology from the newly strengthened WE-EF.

 

Don’t hesitate to contact us if you have any questions about this or would like to discuss your next lighting project with us.

 

All the Best

Mark Herring & The MHL Team.