Energy Efficient Lighting

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Sep/16

30

Apple changes the way you light your home

Researchers beam light particle across fibre network. PLUS: Apple’s new Home app to change the way you light your house. AND: Fluorescent light ‘boosts male testosterone levels’. Lux Today September 27th 2016.

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Aug/16

4

Amazon drones to dock on street lights?

Amazon granted patent to develop drone docking stations that sit on street lights. PLUS: Poor lighting prompts concern before opening of Rio Olympics. AND: Top US basketball team announces li-fi first for new stadium. Lux Today August 2nd 2016.

 

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Apr/16

21

Person of the Year revealed in Lux Awards Middle East 2016

The Person of the Year for 2016 has been revealed in the Lux Awards Middle East. PLUS: Featured interview with Lutron chief Michael Pessina. Lux Today newscast for 19 April 2016 is presented by Courtney Ferguson.

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Apr/16

6

Manufacturer’s performance claims ‘misleading’, says court

A court in Germany has ruled that light output claims by the architectural fixture maker Planlicht are misleading. PLUS: We preview next week’s LuxLive Middle East and interview Lighting Europe chief Diederik de Stoppelaar about data and privacy. Lux Today newscast for 5 April 2016 with Courtney Ferguson UPDATE: Planlicht says it’s been unfairly singled out and that the legal action was based on ‘out of date’ literature and practices. Read the full story below the video:

 

The Austrian lighting manufacturer Planlicht has been censured by a German court for misleading claims for its LED fixtures’ performance.

The legal action is being widely seen as test case in the lighting industry over the validity of the data included in specification sheets.

The architectural luminaire maker XAL – which took the case against rival Planlicht – described the ruling by the Frankfurt Higher Regional Court as ‘a major step towards greater transparency’ in the industry.

The judges ruled that the advertising of LED luminaires with lumen values that refer to the LED itself and not to the luminaire is not permitted – especially when it is not clear to the customer what the value is actually referring to. A general reference in the descriptive text ‘lumen information = circuit board output’ is not sufficient for this. When advertising LED fittings, a power consumption that is lower than the actual power consumption of the lamp may not be indicated.  Finally, the court ruled that only luminaires that actually have a Unified Glare Rating of less than 19 may be advertised as such. If other luminaires in the same family do not meet this criterion, they can’t be included in the description.

Planlicht CEO Felicitas Kohler says the company has been unfairly singled out and that the court ruling was based on out-of-date sales literature and practices.

‘The judicial decision is based on a state of facts from 2013, when most lighting manufacturers published LED information on the luminous flux and power requirements of the LED boards. XAL decided to take legal action against the competitor they fear most and let all the others go their ways.

‘In fact, for all manufacturers of architectural luminaires, there is the challenge in making catalogues provide some overview. To detail all the technical specifications is not as easy as illustrated by you in your article for XAL, who displays luminous flux and power consumption data for only one specific light colour – for the most efficient, not for all.

‘On the fast-improving LED market, Planlicht decided to switch to net figures of luminous flux and power consumption of lighting systems and invested in our own light laboratory. This all happened long before the court decision in Frankfurt, which was based on a two-year old catalogue. So it had no effect on Planlicht; there was no penalty, just the order not to use the old catalogue.’

In a statement, XAL said: ‘Lighting designers and specifiers need exact information regarding lumen output and system capacity so that they can make sound decisions when selecting lighting. Especially when using high-quality LED luminaires, lighting designers expect to be able to rely on the information provided by the manufacturer.

‘But in fact, this information is not provided transparently in the print and online catalogues of some manufacturers.  In many cases, the lumen output refers to the LED or circuit board itself, and is therefore substantially higher than the actual luminous flux of the luminaire.

‘But this value is not relevant for specifiers because it does not represent the visible light output of the luminaire itself. The problem is exacerbated by the fact that the correct power consumption is also not always taken into account, but the power consumption without electronic ballasts. These levels are lower than the actual power consumption. This distorts the efficiency level, which is indicated in lumens/watts.

‘Such misleading information in catalogues poses serious risks for customers. They may be faced with lux levels that are too low, circuit breakers with insufficient capacity, and assumed efficiency levels that are not true.

‘To minimise such risks for customers and to prevent lights from being selected on the basis of incorrect information, [we] decided to take legal action against Planlicht based on a particularly clear case of misleading catalogue information. In its own catalogues, XAL provides a high level of transparency and wants customers to be able to fairly compare offerings across the industry and to be able to accurately plan their lighting systems.’

XAL chief Harald Dirnberger told Lux Review: ‘We’re confident that this ruling will set an important precedent and will contribute to a greater level of transparency in the entire lighting industry. As a manufacturer of high-quality lighting solutions, we see it as our duty to provide our customers with absolutely accurate information as a basis for their planning’.

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Mar/16

31

Smart lights talk to customers in Dubai supermarket

The Middle East’s first retail outlet with connected lighting which communicates with customers has been unveiled in Dubai. PLUS: Interview with Nordeon chief Patrick van Rossum. Lux Today newscast for Tuesday 29 March is presented by Courtney Ferguson.

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Jan/16

28

Apple, Sony Unveil Lighting Innovations

Global tech brands Apple and Sony both reveal new luminaire designs while in our featured interview we talk to iGuzzini Middle East chief Richard Holmes. Lux Today webcast for Jan 26 2016 by Courtney Ferguson.

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Sep/15

25

6 lighting hacks for healthier, more productive workplaces

6 lighting hacks for healthier, more productive workplaces

The right lighting in an office can make all the difference – like in this Berlin office lit by Selux

 Lux report: It’s summer and there’s light all around us – we take it for granted until those dark winter months come along. The sheer lack of sunlight can be depressing. Every year we experience this longing for summer, craving those long, bright days when we feel energetic and in a good mood. The sad news is, we’ve again passed the longest day of 2015, but the good news is that the right artificial lighting in your workplace can help you through.

Good lighting creates pleasant working conditions in a functional and atmospheric way. Satisfaction and efficiency will improve if you make sure you have enough daylight intake and a well-lit office space. Plus, your productivity will be positively affected by well-designed illumination. Artificial lighting that does not just help you see, but also meets your biological lighting needs, is the future of office lighting.

Here are six lighting hacks to keep you healthy and alert through those dark winter days.

 1    Create atmospheres where your ideas can develop

We’re all attracted to light, and there isn’t any other medium that has as big an influence on our bodies and minds as light. Both daylight and artificial light play a key role in our health and wellbeing.

In companies with a high standard of interior design, productivity can increase”

Increasingly, companies face the question of how they can improve staff wellbeing and create a dynamic, creative and motivating environment. The design of the office space plays a vital role, as evidenced by a study from Germany’s Fraunhofer Institute for Industrial Engineering. The research shows that in companies with a high standard of interior design, productivity can increase by up to 36 per cent. Who wouldn’t like to see their efficiency skyrocket?

Additionally, comprehensive research from the Light Right Consortium, came to the conclusion that light increases productivity.

Only around 70 per cent of the interviewees stated that working at workstations with purely downward lighting was comfortable. In comparison, 91 per cent found a lighting atmosphere with direct/indirect lighting and a high quantity of vertical lit surfaces pleasing. Moreover, if the desk light is individually controllable, people feel motivated and work with greater accuracy.

TIP: Create a lighting atmosphere with direct and indirect lighting. Avoid having only downwards-directed illumination

 2    Light for people, not just tasks

Lighting is often just seen as a necessity to enable us to see, but in fact it has many more qualities than the obvious ones. We should move away from just thinking of lighting for tasks and focus on creating light settings for people. Today, most people work indoors, and spends almost the entire day inside, in an unnaturally dark setting. Our light intake is responsible for sleeping and feeling well, and affects our productivity. When there is a lack of natural light to help us tell the time of day, then our circadian rhythm (body clock) loses its pace, with tiredness and listlessness as a result.

Light sets the mood / Photo: Vanessa Pedroso

We constantly find ourselves surrounded by light. It is much more than just illumination. It inspires, attracts, enables communication, sets a mood, and has emotional qualities. When this knowledge transcends into our built environment, pleasant atmospheres are created. Think of a visit to a theatre, a restaurant, or nightclub. These experiences are shaped by light. Good lighting enhances the mood and desirability of spaces, consequently contributing to people’s sense of wellbeing. Every building and space expresses and communicates an identity, and sometimes also a corporate value. Good lighting should be a part of this, because what other component can enhance an atmosphere as much as light can?

TIP: Create a mixture of different lighting. This will guarantee flexible change of light setting. Use illumination that supports a space’s identity

 3    From homo sapiens to homo officunus

In today’s world, we spend many hours working in biotopes – surroundings created by humans”

In today’s world, we spend many hours working in biotopes – surroundings created by humans. Instead of trying to adapt ourselves to our creations, we should adapt these biotopes to our needs. Sufficient light is one of those needs.

So how can you create a setting that increases your satisfaction and productivity? Here are a few guidelines:

  • Take the biological quality of lighting into account. Light synchronises the circadian rhythm. It influences our sleep-wake cycle and this has a big influence on our health and productivity.
  • Adapt the lighting to the daytime and season, as well as to the individual needs of the user.
  • Vertical surface illumination, preferably on large wall surfaces, is vital to create a sense of space and depth. It also gives a visual resting point for the eyes and adds a pleasant atmosphere to the working environment.

Too often, office environments are insufficiently lit, not only from the perspective of biological lighting needs but also from an architectural one, where the room feels smaller due to inadequate lighting.

The graph below shows how office workers assessed their working environments – showing which aspects are important to them and how satisfied they are with each aspect. As you can see, lighting is rated the most important of all the aspects mentioned, but there’s plenty of room for it to improve.

 

Data based on a study from Sedus together with the research institute Hagstotz ITM

 TIP: Have a light for general illumination, a standing luminaire that uplights the ceiling and a desk light

 4    Get the best spot in the house

Are you based in a co-working space? And is there a flexible desk policy? Choosing the right spot in the house can go a long way.

Pick a place with a lot of daylight. It is recommended that around three per cent daylight reaches a person’s working area. However, in most offices this is not the case. Daylight gives an emotional quality to a space and the possibility to look outside is an added bonus. If you can, choose a spot near the window. But make sure that there is sun shading to prevent harsh reflections on your computer screen.

TIP: Take the window seat, north, east or west facing

 5    Light against the blues

About 80 per cent of all information is taken in through our eyes. Until recently it was believed that our eyes used two kinds of photoreceptors – rods and cones – to receive light, but a decade ago, a third kind, called ganglion cells, was discovered. Unlike rods and cones, these cells do not contribute directly to our sight; they are nevertheless light dependent and help to regulate our circadian rhythm. So light is not just a prerequisite for seeing, but is also an important zeitgeber (timer) and a regulator for our bodies.

Unfortunately, we often don’t get the light intake we actually need, especially during the darker time of the year, resulting in the winter blues or seasonal affective disorder (SAD) – a type of depression linked to a lack of light. It leaves people feeling moody and lacking energy. Most people who suffer from SAD benefit from bright light treatment. Even in a workplace setting, light therapy makes people feel more awake and energized. It is found that an illumination that goes up to 2000 lux at the working area in the morning and the afternoon, reduces the physiological reaction of stress and gives an energising effect to the body.

In comparison, most working areas are lit to a standard 500 lux. If you want to check the amount of lux at your desk, download a lux meter app. It’s not very precise, but it gives you an idea on how little light we actually have indoors.

Daylight (10000K) and sunset (2000K) / Photo: Sabine De Schutter

Not only is a higher quantity of light needed, but also the colour temperature of the lighting plays a role.

The artificial lighting should correspond to the colour temperature of the daylight. At noon the sky’s colour is a very cool 10000K but at sunset it is a much warmer 2000K. Additionally lighting should reflect indirectly into the eyes from large surfaces, such as walls and ceilings.

TIP: Try to catch enough daylight at any time of the year. Go outside for a break, get off a stop earlier from the subway and walk the rest of the way to the office. You should have at least half an hour of daylight a day

  6    Light, coffee, action!

When you work late on a computer or tablet it can be difficult to sleep afterwards. The cause of this is the high blue content of backlit screens”

A deadline and still a lot of work ahead, no time to sleep! As lighting can disrupt your sleeping pattern, it can also boost your activity. If you have already followed the above-mentioned advice for biologically effective lighting than you’re already on the right path. If you need to pull an all-nighter, increase the light intensity and the quantity of bluish white light in the room. Almost done with your work? Change the setting to warm, low-intensity lighting, which will calm you down.

You might also have experienced that when you work late on a computer or tablet it is difficult to sleep afterwards. The cause of this is the high blue content of the backlit screens. Blue light at night causes an out-of-phase circadian rhythm, and is a health hazard. So use this lighting hack consciously. There are some applications you can install that correlate the screen’s brightness and colour, to the daylight of your location. F.lux, for example, works on most systems, or the Twilightapp reduces the amount of blue lighting on your Android phone.

TIP: Have different lamp types and colour temperatures at your working area. Warm light sources at your desk can be combined with indirect and general lighting with different colour temperatures, for example 3500K and 5000K

 

Sabine De Schutter is a Berlin-based lighting architect with a background in interior design, who runs her own architectural lighting design studio. She’s a former SLL Young Lighter of the Year, and in 2014 was named Best Newcomer at the German Lighting Design Awards, as co-founder of lighting design practice Jack Be  Nimble. 

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