Lighting in Design Q2 2024

www.crown.co.za

Q2 - 2024

Illuminate & transform your winter wonderland

Effortlessly blending modern architecture with nature

LiD Q4 - 2023 Lighting’s industrial evolution & future forecast 1

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12000lm

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24000lm

100W

150W

200W

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230mm(d) x 33mm(h)

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Ed Space

Modern industrial lighting solu tions are now geared towards not only efficiency but also enhancing worker safety and productivity. In novations such as smart lighting systems that adjust to natural light conditions and human-centric lighting that supports workers’ cir cadian rhythms are becoming the norm, all of which are explored on page 20. Long-term sustainability is a theme that resonates across all facets of lighting. The future of lighting development is intrinsi cally linked to our commitment to sustainability. This means embracing renewable energy sources, developing more effi cient lighting technologies, and ensuring that lighting products are recyclable. Companies, like Ledvance on page 16, are invest ing in research to create lighting solutions that are both eco-friend ly and economically viable. For in stance, advancements in organic LEDs (OLEDs) and the integra tion of lighting with smart home systems are paving the way for greener lighting solutions.

As the winter chill sets in and the days grow shorter, our homes become sanctuaries of warmth and comfort. Transforming your house into a cosy winter wonder land is an art, and lighting plays a pivotal role. The gentle glow of well-placed lights can evoke a sense of warmth and tranquillity, turning the starkest of spaces into inviting havens. Lighting expert Eurolux shares a couple of easy to-follow tips and tricks on page 12 to help get ready your cocoon with that perfect ambiance. However, as we embrace the beauty of lighting, it is essential to still consider the impact of LED light pollution on our eyes. While LED lights are celebrated for their energy efficiency and longevity, their prevalence has raised con cerns about light pollution, par ticularly the blue light emitted by many LEDs. Prolonged exposure can strain our eyes, disrupt sleep patterns, and potentially lead to more severe health issues. Otto Horlacher from Giantlight explores this topic a bit more on p18, revealing why you should opt for warmer tones and ensure adequate breaks from screen time. Shifting our focus from do mestic spaces to industrial set tings, there have been significant changes in industrial lighting.

Editor: Craig Falck (sparks@crown.co.za) Advertising manager: Carin Hannay (carinh@crown.co.za) Layout: Katlego Montsho • Circulation: Karen Smith Cover: Regent Lighting Solutions Published by Crown Publications (Pty) Ltd PO Box 140, Bedfordview, 2008 - Tel: +27 (0)11 622 4770 Fax: +27 (0)11 615 6108 - Website: www.crown.co.za ABC 2023 Q2: 7 564 • Printed by: Tandym Print All issues of Lighting in Design can be viewed on our website. Visit www.lightingindesignmagazine.co.za

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EDspace Editor’s comment. Harmonious fusion with nature

In the heart of the mountains near Quebec’s Mont-Tremblant, a new residence has emerged that seamlessly blends human engineering with its natural surroundings. Every detail is meticulously designed to integrate with the surrounding topography, including a minimalist lighting system that bathes the building in golden glory. Lighting the Mother City BEKA Schréder has introduced an innovative solar lighting solution to enhance safety and visibility at a bustling Cape Town pedestrian crossing set in the heart of Century City, a 250-hectare urban precinct where the residents and visitors enjoy a luxury, well-lit way of life. Light up with winter warmth The onset of the cooler months ignites our desire to retreat to our homes in search of warmth and comfort. Eurolux shares tips on a new trend for 2024’s winter, including utilising textures and textiles, illuminating dark spaces, and using non-conventional shades of paint to give your winter cocoon a new feel. CCT challenges the status quo The ability to seamlessly control and adapt colour temperatures has become a transformative feature in lighting. Constant Colour Temperature (CCT) panel lights have emerged as a game-changer, offering unparalleled versatility and aesthetic appeal, says Radiant Lighting. What is light pollution? Otto Horlacher from Giantlight investigates why LEDs have become a massive contributor to light pollution, including an in-depth look at photoreceptors in our eyes and how even the slightest change in lighting can have tremendous impacts on the way our eyes work. Illuminating industries Industrial lighting trends are likely to continue focusing on energy efficiency, sustaina bility, and advanced technology integration, all of which directly impact aspects such as safety, productivity, operational efficiency, regulatory compliance and many more. News Get up to date with news reports from illumination sectors around the globe, including ams Osram’s multi-billion rand new factory, research into reducing LED glare, how lighting systems are being used to grow millions of plants in Canada, and the arrival of self-testing emergency LED drivers.

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Harmonious fusion with nature In the heart of the mountains near Quebec’s Mont-Tremblant, a new residence has emerged, merging harmoniously with its natural surroundings. N amed ‘46N74O Alt. 280’, this residence by blanchette archi.design embodies a reflection where every detail is meticulously the hues of frost on the maple leaves found on the site. Perfect fusion: 46N74O Alt. 280 & its topography

designed to integrate with the surrounding topography, capturing the very essence of this lofty location. Evocative simplicity “The name of the residence sums up the spirit of the architectural project,” says Patrick Blanchette, President and Senior Architectural Associate of blanchette archi.design. “The residence embodies a fusion between human gestures and nature. Every element of its design has been conceived to blend seamlessly into the landscape, offering a living space where well-being and communion with the environment prevail.” He adds, “Our objective with 46N74O Alt. 280 was to create a space where simplicity and elegance interact with the surrounding nature. Every gesture, every material, was carefully chosen to preserve the very essence of this exceptional place, and to blend in with sobriety and elegance.” Biomorphic design, incorporating Feng Shui principles Inspired by the principles of Feng Shui, this residence embraces five elements – wood, fire, earth, metal and water – with meticulous integration. The interior spaces, divided into clear functional zones, enable harmony between form and function. The sustainable, local materials used in the construction, such as natural cedar, create an elegant aesthetic, while respecting the environment. Anodised aluminium was developed in a specific chromatic, drawing its essence from

“The wood-and-concrete structure of the residence blends seamlessly into the surrounding topography, following the natural curve of the eponymous level,” says Blanchette. “Large windows offer unobstructed views of the landscape, inviting residents to connect with nature at any time of day. Furthermore, architectural concrete acts not only as structural stability, but also as thermal mass and a breadcrumb trail through the residents’ journey.” A sanctuary of relaxation & well-being Inside, the thoughtful layout of the home’s spaces ensures a seamless transition between the various living areas. The interplay of natural light and strategically placed openings allow the surrounding nature to penetrate every area of the house, creating a singular, soothing atmosphere. The cast concrete terrace, facing the sky and incorporating a spa and sauna, becomes a veritable sanctuary for recharging your batteries. A refined, inclusive experience Custom-designed furnishings by blanchette archi. design ensure harmonious integration and an optimal experience for the residence. Additionally, the residence’s reception areas are all on one level, ensuring accessibility and inclusive qualities to the living areas.

Images and interview courtesy of www.v2com-newswire.com

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A sanctuary of relaxation & well-being Inside, the thoughtful layout of the home’s spaces

Furthermore, architectural concrete acts not only as structural stability, but also as thermal mass and a breadcrumb trail through the residents’ journey.”

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A refined, inclusive experience Custom-designed furnishings by blanchette archi. design ensure harmonious integration and an optimal experience for the residence. Additionally, the residence’s reception areas are all on one level, ensuring accessibility and inclusive qualities to the living areas.

Images and interview courtesy of www.v2com-newswire.com

Spanish flair

The Palau Fugit Hotel in Girona’s Old Quarter is given a vibrant, seductive facelift. E l Equipo Creativo has completed the interior design of El Palau Fugit, with the award winning studio converting a disused 18th century palace into a destination hotel as charming and seductive as Girona itself.

Here, an arched courtyard, renamed ‘La Placeta’, holds the reception area, restaurant, and cocktail bar, as well as a tucked-away spa-for-one. Guests ascend to rooms via the original staircase of the palace. The second building, the Pavelló, is an annexe that takes shape with a modern, rational approach. Both volumes are connected by a terrace, or the ‘heart’ of the hotel. Endowed with a small swimming pool, abundant ferns, and a poetic central sculpture (titled Font de Gararotes) by renowned local artist Frederic Amat, it provides a serene oasis for guests and a natural connection between the two edifices. The rooms For the rooms in El Palauet, El Equipo Creativo reimagined the sumptuous decor of the fin de siècle through a prism of contemporary design and art. The designers’ goal was to instil a ‘feminine’ presence throughout, recreating the warm and eclectic ambiance of a noble family nest. Careful attention to detail and the selection of materials and textures create a rich visual experience. This is further enhanced by a curation of paintings, sculptures, murals, and photographs - all of which are original works by local artists. Although each room and suite presents a design

El Equipo Creativo used the ‘two Gironas’ as its starting point. The first, Barri Vell, is an emblematic district of weathered stone façades, hidden cul-de sacs, porticoes, and stone ramparts. In contrast, the designers have highlighted the lighter side of the city – namely the vibrant colours that bathe the townhouses flanking the River Onyar. These influences, enhanced with striking modern art and crafted objects, create a hotel that begs to be discovered and enjoyed. “We aimed to create a sense of high luxury minus the pretensions. We respected the original architecture, of course, but with fresh, elegant, surprising and, at times, a little disruptive elements,” says Natali Canas del Pozo, co-founder and Creative Director of El Equipo Creativo. The building Palau Fugit unfolds in two parts, both adapted to the needs of modern travellers and experience hunters by the Barcelona-based architecture studio Isern Associats. The first is the original palauet.

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story unto itself, Gothic arches and porticoes, a dominant architectural motif of Girona’s Barri Vell, are a recurring influence and narrative. Curvaceous chaise lounges, bespoke rattan bed heads, and avant-garde lighting enfold the guest. Surfaces and textiles, from velvet drapes to strategically placed mirrors, invite the user to linger and relax in this historic setting. Anchoring each room is a custom-made marble vanity unit, a monolithic interpretation of the tocador (dressing table) that exemplifies domestic life of the period. The rooms in El Palauet brim in a palette of natural stone shades and soft blues, greys, and blush tones, creating an elegant mise-en-scène that is very contemporary and lends new life to original features such as ceiling roses and carved balcony shutters. This mood changed in El Pavelló – an ode to ‘la dolce vita’ of the Mediterranean. A palette of terracotta, locally made ceramics, and wood give a mid-century chic feel to the rooms, each enhanced by natural light pouring in through direct patio access. Handmade terracotta breeze blocks and tiles create rippling shadows and textured surfaces, and rattan chairs and occasion tables evoke the local craft ateliers of the Costa Brava. With splashes of colour and hand-spun textiles, the overall feel is at once casually glamorous and effortlessly cool. Public & social spaces Casa Heras, the hotel’s restaurant, is inspired by the social and hospitality areas of the original palace and adapted to modern lifestyle and comfort. Like the rest of the hotel, modern art and objects elevate the spaces, as seen in the whimsical wall murals created by Joana Santamans, and bespoke ceramic pieces from the artisan Núria Gimbernat.

Sparkling copper pots and pans placed on an antique dresser fill the dining room, while high quality tables, chairs, and fittings denote a timeless modern feel. Adjacent to this, El Salon provides a space for a cocktails and intimate conversation, surrounded by vestiges of the palau’s ancient walls. La Biblioteca (library) is a distinguished space conceived for private banquets and meetings around a beautiful oval marble table. The designers intended La Placeta to be a little more disruptive, and the idea of re-introducing the palace to the social life of the city was essential to the project. Cradled by stone arches and an original staircase, La Placeta presents a place to meet and chatter around zesty-coloured armchairs and tables that are full of personality.

Images and interview courtesy of www.v2com-newswire.com

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By the power of the sun

BEKA Schréder has introduced an innovative solar lighting solution to enhance safety & visibility at a bustling Cape Town pedestrian crossing.

S panning 250 hectares, Century City in Cape Town is a vibrant urban precinct boasting a plethora of amenities, including hotels, schools, residential areas, commercial and retail spaces, and recreational areas like the renowned Intaka Island nature reserve. With over 700 businesses and a staggering 21 million annual visitors, Century City epitomises a dynamic blend of work, living, and leisure, says Riaan Bubb, a senior sales engineer at illumination specialist BEKA Schréder. The Century City Property Owners’ Association (CCPOA) plays a pivotal role in managing this bustling hub, ensuring its smooth functioning akin to a mini municipality, adds the lighting executive. Facing visibility challenges during power outages, particularly at the intersection adjacent to a MyCiTi Bus Stop and the Public Transport Interchange (PTI), the CCPOA sought a reliable lighting solution. “BEKA Schréder is renowned

integrity. Consequently, the intersection’s lighting has been upgraded with a vertical solar-powered solution complemented by new ALBANY GEN2 luminaires.” This innovative retrofit ensures continuous illumination even during loadshedding and other power outages, significantly enhancing pedestrian safety during night-time crossings. “BEKA Schréder’s commitment to sustainable, locally adapted lighting solutions aligns seamlessly with Century City’s ethos of modern urban living,” says Bubb, who concludes, “Collaborating with the Century City Property Owners’ Association on this project has been a source of pride for BEKA Schréder, underscoring our dedication to providing effective lighting solutions that enhance public safety and well-being.” Enquiries: www.beka-schreder.co.za

for its energy-efficient LED lighting solutions tailored to local conditions, so being awarded the business contract was for the community’s benefit,” adds Bubb. “Given the aesthetic appeal of BEKA Schréder’s ALBANY GEN2 luminaires already adorning Century City, the CCPOA was keen to maintain the precinct’s visual

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An apple a day

Illumination specialist EuroConcepts shines a bright light on the food retail sector.

L ocated in Linksfield Terrace on the east rand of Johannesburg, the latest franchise store of Apple Tree Fresh Food Markets has been illuminated by leading retail lighting specialist EuroConcepts. “The store owner, Bruno Barradas, has been in the food business for years, and his brief to us was that he wanted a premium lighting spec to rival the most high-end food stores locally and abroad. This allowed us to utilise some of our latest LED fittings in the portfolio,” says Jean-Drè Mare, Johannesburg branch manager at EuroConcepts. “The Grado track lights have worked perfectly in the installation – they are brilliant for aisle illumination as an alternative to typical linear lighting, but also for lighting wide signage (for which they were initially developed),” adds Mare. EuroConcepts has been designing and developing customised lighting solutions for retail and commercial application for two decades. Together with its partners, German brands OKTALITE and TRILUX, EuroConcepts has provided effective, well conceptualised illumination

systems to some of the country’s biggest retail chains and brands. “We are very excited about this project, and we are looking forward to lighting more Apple Tree stores around the country,” concludes Mare. Enquiries: www.euroconcepts.co.za

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Light up with winter warmth The onset of the cooler months ignites our desire to retreat to our homes in search of warmth and comfort. Eurolux shares tips on themes for 2024’s winter. W hile bright colours and breezy textiles are synonymous with summer, the colder months call for a different aesthetic. It is

Play with contrasts When decorating with darker hues, it’s important to create a visually dynamic and balanced interior, and you can achieve this by contrasting light and dark elements. An example would be inky blue walls paired with a soft caramel sofa or a cream coloured rug. This sort of contrast adds depth and dimension to a room and allows your furniture and textiles to pop against a backdrop of darker shades. Create a cosy cocoon with textiles Up the warm, homely factor by selecting textiles that make the room feel like a cocoon. Sumptuous fabrics like velvet, wool and faux fur in dark shades of black, chocolate, emerald green and ruby red all create a tactile and inviting atmosphere. By layering items such as throw blankets, rugs and scatter cushions, you add visual and physical warmth to a space. Illuminate the darkness While embracing dark colours is the name of the game in winter, it’s important to note that there

time to embrace the allure of darker hues, which, when used correctly, can help transform a space into a cosy cocoon where one can relax and unwind away from the cold. Lighting expert Eurolux looks at some of its favourite – and easiest – ways to inject warmth into your home this winter through dark colours. Make a statement with paint One of the simplest ways to transform a space into a cosy haven is to paint the walls. Deep shades of charcoal, navy, green and burgundy can instantaneously change the mood of a room and make it feel warmer. If painting all the walls in a room is out of your comfort zone, opt for a single accent wall. Painting just one wall in a room is a great way to experiment with colour without overwhelming both you and the space. The darker wall (or walls) will add depth to a space and serves as a great backdrop for furniture and textiles.

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A combination of ambient, task and accent lighting will give the room a layered look and prevent it from feeling too heavy. Fixtures in warm metal tones of gold, copper and brass look spectacular when paired with darker-hued wall colours, furniture and textiles. Enquiries: www.eurolux.co.za

must be some element of light to prevent a space from looking overly sombre. Adequate lighting is key to achieving this delicate equilibrium. Maximise natural light where you can by way of windows and doors, but also include a few carefully considered light fixtures to ensure the room has a cosy glow about it.

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CCT challenges the status quo

Illumination specialist Radiant unwraps constant colour temperature and why it is proving to be the next big thing in lighting.

T he ability to seamlessly control and adapt colour temperatures has become a transformative feature in lighting. Constant Colour Temperature (CCT) panel lights have emerged as a game-changer, offering unparalleled versatility and aesthetic appeal, says Radiant Lighting. From residential spaces to commercial environments, these fixtures are a popular choice for those seeking an adaptable, energy-efficient and aesthetically pleasing lighting solution that can be tailored to different environments and preferences. Understanding CCT panel lights CCT panel lights are a modern lighting solution that

provide users with the ability to adjust the colour temperature according to their specific needs. The colour temperature is measured in Kelvin (K), and CCT panel lights typically offer a range of temperatures, allowing users to switch between warm and cool hues. This adaptability makes them an ideal choice for various settings, including residential, commercial, and industrial spaces. CCT panel lights operate through a sophisticated interplay of Light Emitting Diode (LED) technology and intelligent control systems. These fixtures incorporate multiple LEDs with different colour temperatures, ranging from warm to cool hues. The pivotal aspect of CCT panel lights lies in their ability to adjust the intensity of these LEDs,

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efficiency, aligning with the global push towards sustainable lighting solutions. In South Africa, where energy conservation is a critical consideration, these lights play a pivotal role in reducing electricity consumption. By utilising LED technology and offering the ability to adjust brightness levels, CCT panel lights contribute to lower energy bills and an CCT panel lights also cater to the growing importance of human-centric lighting design. The ability to alter colour temperatures mimics natural daylight changes, positively impacting mood, productivity, and overall well-being. This feature is particularly significant for people who spend extended hours indoors due to work. By bringing the benefits of natural light indoors, CCT panel lights enhance the overall quality of life for employees. Applications in different settings • Residential Spaces: Create a cosy and inviting ambiance in living rooms with warm colour temperatures or set the colour temperature to daylight for productive spaces like the kitchen. • Commercial Offices: Boost productivity by adjusting colour temperatures to simulate natural daylight, fostering a conducive work environment. • Retail Spaces: Showcase products with precision by choosing the appropriate colour temperature to enhance merchandise aesthetics. • Educational Institutions: Create an optimal learning environment by adjusting lighting conditions according to different activities. Enquiries: www.radiant.co.za eco-friendlier lighting solution. Human-centric lighting

allowing users to fine-tune the colour temperature according to their preferences. The electronic control systems within the panel light, often driven by a microcontroller, respond in real-time to user input, seamlessly transitioning between various Kelvin values. This technology not only provides a consistent colour temperature but also facilitates the creation of different lighting atmospheres. Additionally, many CCT panel lights feature dimming functionality, allowing users to control not only the colour temperature but also the brightness level, offering a versatile and customisable lighting solution. Versatility in design One of the key advantages of CCT panel lights is their adaptability in design. These lights come in various shapes and sizes, providing designers and architects with the flexibility to integrate them seamlessly into different environments. Whether you are aiming for a sleek and modern office space or a warm and inviting home setting, CCT panel lights can be customised to suit your aesthetic preferences. Energy efficiency & cost savings CCT panel lights are known for their energy

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Ledvance leads the way The illumination company has been honoured for its drive and commitment to sustainability. W ith marked improvement across all evaluation categories compared to previous year, German-based lighting

compared to the preceding year. “We were able to successfully achieve a score of 65, an increase over the previous year, securing its EcoVadis silver medal status for another consecutive year,” adds Lin. “In recent months, we have undertaken significant strides to further enhance its sustainability agenda.” Introducing the Ledvance Loop as an overarching brand for all sustainability-related matters, the company has also devised a comprehensive sustainability strategy to chart its path towards achieving its objectives. In line with these efforts, Ledvance recently unveiled its latest line of Everloop luminaires, featuring interchangeable light sources and drivers. With aspirations for a gold rating in 2024, Ledvance’s trajectory now faces reassessment owing to alterations in EcoVadis’ evaluation criteria. Effective 1 January 2024, EcoVadis has reduced the proportion of awarded companies from 50% to 35%, while simultaneously elevating minimum score requirements for certain categories. These adjustments may result in diminished ratings despite performance enhancements. Medals will be conferred solely based on percentile

specialist Ledvance has been recognised with a silver medal by globally recognised assessment platform EcoVadis for its sustainability endeavours in 2023. “Employing EcoVadis sustainability ratings since 2018 to assess and showcase its sustainability initiatives and accomplishments to stakeholders, we have seen notable progress in all evaluated aspects,” says Lawrence Lin, Chief Executive Officer (CEO) of Ledvance. “This includes topics such as the environment, labour and human rights, ethics, and sustainable procurement.” The company’s heightened dedication to adopting a comprehensive global sustainability approach, incorporating additional measures such as participation in sustainability initiatives like SBTi, enacting a global sustainability strategy, implementing new policies across various sectors, and issuing its inaugural global sustainability report, has resulted in an overall improved rating and performance across all subcategories

thresholds, eliminating static score benchmarks associated with each medal tier. “Despite this, Ledvance stands in solidarity with EcoVadis’s decision regarding the criteria changes, viewing it as a stride towards enhanced global corporate regulation and elevated standards for the medal programme,” says Stefan Geißdörfer, Global Head of Compliance & Sustainability at Ledvance. “Through annual reassessments, identification of strengths and weaknesses, and implementation of remedial measures, we are committed to our continual improvement, thereby bolstering our contribution to a sustainable planet.” Enquiries: www.ledvance.com

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FUTURE-PROOF LIGHTING SOLUTIONS SUSTAINABLE, ENERGY EFFICIENT HIGH EFFICACY LIGHT ARE YOU INTERESTED IN MODERN AND ENERGY-EFFICIENT LED LIGHTING? LEDVANCE offers smart lighting products that you can control via smartphone or voice, stylish and functional LED luminaires, our trendy Vintage Edition 1906 and state-of-the-art LED lamps. Exciting and sustainable LED lighting individually for your home.

What is light pollution?

Why have LEDs become a massive contributor to this phenomenon – Otto Horlacher from Giantlight investigates… L ight pollution is defined as ‘human made altera tions of outdoor light levels from those occurring naturally’. “To better understand this phenom team reduced the light level on the client’s desk to less than 300 lux. Different sources & their light

enon – let’s first look at how humans see light,” says Otto Horlacher. “The human eye can see visible light – in the spectrum range from about 380nm (almost ultraviolet) to just past 700nm (near infra-red).” Humans have two main photoreceptors in the retinas of our eyes: Rods and Cones. We have three ranges of vision: • Photopic vision engages our cone receptors and is used in daylight conditions when there is sufficient light (as low as 10cdm 2 and upwards). Cones comprise red, green and blue receptors – humans have about 6 million cones and more than 100 million rods. • Mesopic vision is when neither cone nor rod are fully engaged – this occurs in twilight conditions. • Scotopic vision is when the rods engage and are used in night-time conditions. Typically, we cannot see colours at night because the cones are not engaged. “Our eyes are incredibly sensitive to light,” says Horlacher. “On one occasion, I was called into the dealer principal’s office at a high-end car dealership as he was complaining that the lights were giving him a headache. I could immediately tell that his office was over-illuminated, and he was receiving about 800lux on his table workspace. His pupils were contracting to adapt to the high light level, and he would then focus on his computer monitor that was at less than 200nits, forcing his pupils to expand. Naturally he was going to get sore and tired eyes.” To solve the problem, the

To further understand the effect of light pollution, we need to quickly delve into different light sources and what they produce. “The critical aspect here is to look at the size of the light source in relation to the amount of light it produces,” explains the illumination expert. “Incandescent (old-style globes) see a tungsten wire positioned in a near vacuum. Electrical energy is run through the filament making it burn ‘white hot’ – typically a filament would be 3cm long and 1mm in diameter, which translates to 30mm x 1mm producing about 1 300 lumens for a 100W. So that means 1 300 lumens divided by the area of the light source 30mm = 43 lumens per mm 2 .” Fluorescent lights (either hot or cold cathode), are gas-filled tubes of normally argon or mercury vapour, with electrodes at either end. “When an electrical pulse (starter device) is sent through the gas from one electrode to the other, the electrons in the gas are repositioned to face in one direction,” explains Horlacher. “This allows an electrical current to flow through the gas, which is then energised and emits ultraviolet energy. This energy meets a phosphorous coating on the inside of the glass (the white powdery substance) which converts the ultraviolet energy into white light.” A 36W tube, 1 200mm x 26mm, will produce 3 200 lumens – 3 200 lumens divided by the area of the fluorescent tube = 48 984mm 2 or less than 0.067 lumens per mm 2 . The third is gas discharge. “Let’s use a metal halide 150W lamp that operates similarly to a fluorescent bulb in that it has two

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electrodes and a gas in-between the electrodes (in this case, metal halide),” explains Horlacher. “Typically, metal halide lamps produce 70-100 lumens per watt of electricity consumed. So, for a 150W metal halide at 85 lumens per watt, that would be 12 750 lumens. The part of the metal halide lamp that produces the light can be either ceramic or quartz, typically 20mm x14 mm, with a total light-producing area of 2 653 mm 2 – 12 750 lumens divide by 2 653 mm 2 = 4.8 lumens per

mm 2 .” “Lastly, we look at LEDs. A 5050 chip operating at 6V and 700mA = 4.2VA or watts. This chip measures 5mm x 5mm = 25mm 2 . The efficacy of a 5050 LED chip is in the region of 160 lumens per watt, so 4.2 x 160 = 672 lumens, which in turn means 672 lumens divided by 25mm 2 to equal 26.8 lumens per mm 2 ,” explains Horlacher. “This makes LEDs a very bright light source to have in direct line of sight.” Enquiries: www.giantlight.co.za

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Illuminating industries

Industrial lighting trends are likely to continue focusing on energy efficiency, sustainability, and advanced technology integration.

L ighting is key to the industrial sector because it directly impacts aspects such as safety, productivity, operational efficiency, regulatory compliance and many more. Investing in effective illumination solutions is essential for optimising industrial operations and maintaining a competitive edge in today’s marketplace. Lighting website lightology.com highlights trends the industrial sector is experiencing in terms of lighting… LED dominance: LED lighting has been a dominant trend in industrial lighting for several years now due to its energy efficiency and long lifespan. In 2024, LED technology will continue to advance, offering even higher efficiency and better light quality. Smart lighting systems: Industrial facilities are increasingly adopting smart lighting systems that utilise sensors, IoT (Internet of Things) connectivity, and data analytics to optimise energy usage and improve operational efficiency. These systems can automatically adjust lighting levels based on occupancy, daylight levels, and other factors, leading to significant energy savings. Human-centric lighting: There is a growing emphasis on human-centric lighting design, which considers the physiological and psychological effects of light on people’s health, well-being, and productivity. Industrial lighting solutions will incorporate tuneable white technology, allowing for dynamic adjustments of colour temperature to mimic natural daylight patterns throughout the day. Li-Fi technology: Li-Fi (Light Fidelity) is an emerging technology that uses light to transmit data, offering faster and more secure communication compared to traditional Wi-Fi. In industrial settings where reliable and high-speed data transmission is crucial, Li-Fi-enabled lighting systems is already gaining traction. Modular & customisable fixtures: Industrial lighting fixtures that offer modularity and customisation options are becoming more popular. These fixtures allow for easier installation, maintenance, and scalability, as well as the ability to tailor lighting solutions to specific industrial applications and requirements. Advanced controls & automation: Industrial lighting systems are increasingly integrated with building management systems (BMS) and automation platforms, allowing for centralised

control and monitoring of lighting across the facility. This integration enables predictive maintenance, fault detection, and optimisation of energy usage. Energy harvesting technologies: Industrial facilities are exploring energy harvesting technologies such as solar panels and kinetic energy harvesting to power lighting systems, reducing reliance on grid electricity and lowering operational costs. Circular economy & sustainable materials: As sustainability becomes a greater priority, industrial lighting manufacturers are focusing on designing products with recycled materials, minimal environmental impact, and a focus on end-of-life recycling or repurposing. Lighting as a Service (LaaS): LaaS models,

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and safety regulations and standards, ensuring adequate illumination levels for worker safety, visual comfort, and compliance with industry guidelines. These trends reflect the ongoing evolution of industrial lighting towards more efficient, intelligent, and sustainable solutions that enhance both productivity and environmental responsibility.

where lighting infrastructure is provided as a service rather than being owned outright by the facility, are gaining popularity. This approach can help industrial businesses reduce upfront costs, ensure access to the latest lighting technology, and benefit from ongoing maintenance and upgrades. Health & safety compliance : Industrial lighting designs are increasingly being aligned with health

21

LiD Q2 - 2024

New specifications for lighting to boost SA energy efficiency

tally harmful lighting products. The Reg ulator intends to phase out all inefficient electric lamps used for general lighting by 2026 and ensure consumer safety against non-compliant lamps in the market. The regulations will be implemented in two phases. Phase 1, commencing in May 2024, will introduce the minimum energy efficiency level for general service lamps in the South African market. Phase 2, starting in May 2026, will further improve efficiency levels to completely phase out the use of incandescent and Compact Fluorescent Lamps (CFLs) for general lighting in South Africa. These regulations will promote the use of highly efficient Light Emitting Diode (LED) technology to contribute to the needed reduction in electricity demand and costs for consumers. LED lamps are approximately 85% more efficient than incandes cent lamps and 40% more efficient than CFLs. They also have a longer lifespan of up to 20,000 hours (around 12 years, assuming 4 hours of operation per day) and do not contain toxic gases like mer cury, which is found in CFLs. It is expected that the introduction of these regulations will save consumers up to R12 billion over 15 years and result in energy savings of about 300GW over a 10-year period, helping the country meet its high electricity demand.

To significantly reduce electricity consumption and promote energy-efficient lighting in South Africa, Ebrahim Patel, the Minister of Trade, Industry and Competition, has withdrawn the compulsory specifications for single-capped fluorescent lamps and incandescent lamps. These will be replaced by the com pulsory specification for safety requirements of general service lamps, as gazetted on 24 May 2024. The National Regulator for Compulsory Specifications (NRCS) introduced two new compulsory specifications (VCs 9109 & 9110) to address the energy crisis crippling the South African economy and affecting livelihoods. According to the NRCS, the compulsory specifications VC 9109 for energy efficiency and functional performance require ments of general service lamps (GSLs) and VC 9110 for safety requirements of general service lamps, will help tackle the country’s energy issues. The new specifications aim to enhance the safety, perfor mance, and energy efficiency of lightbulbs sold in South Africa. Additionally, they seek to eliminate inefficient and environmen SA Treasurey announce lamp exclusions Despite the implementation of the new lighting regulations in South Africa, incandescent and compact fluorescent lamp (CFL) bulbs will remain on shelves for some time. According to a local manufacturer, a sales permit will be available to continue stocking low-efficiency lamps until the end of 2024. The regulations also include several exclusions, allowing these lamps to be sold for specific purposes, such as use inside a braai or for warming. The ban specifically excludes the following types of lamps: • Lights for chemical or biological processes, including animal care, horticulture, and UV curing • L ights for image projection • S ignalling lights • S tudio and theatre lighting • L ighting for scenes or objects with negative effects on certain light sources • E mergency lighting • L ighting for ambient temperatures over 120°C This means high-energy-consuming bulbs will likely continue to be sold, but only for specialised applications and not for gen

Source: www.esi-africa.com

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eral-purpose lighting. “This complements the phase-out of inefficient light bulbs and promotes compliance with the new energy efficiency standards published in May 2023 by the Department of Trade, Industry, and Compe tition,” states Treasury.

Source: www.businesstech.co.za

22

LiD Q1 - 2024

N ews News

Producing 60 million ready-to-grow plants in greenhouses

greenhouse growers across the continent.” The company Is planning to add an 8-acre state-of the-art facility to their property, expected to be used in production within the next four years.

Ontario Plants Propagation has grown from a modest 3-hectare family operation into North America’s leading supplier of high-quality starter plants. Spanning 19 hectares of advanced greenhouses, the company produces over 60 million young plants annually, supplying approximately 40% of North American greenhouses. Specialising in vegetable plants such as tomatoes, cucumbers, peppers and egg plants, they employ a team of over 200 experts. “Our success is attributed to our commitment to innova tion and sustainability. Using hydroponic methods, Ontario Plants Propagation achieves 30 times higher yields com pared to traditional farming while recycling 2.5 million litres of water daily. “Our advanced greenhouses minimise the use of pesticides and herbicides, and strict hygiene protocols ensure high biosecurity, crucial for preventing diseases like Tomato Brown Rugose Fruit Virus,” says Mathieu van de Sande, Chief Executive Officer of Ontario Plants. Technological advancements are central to the compa ny’s operations. “The integration of Fluence VYPR LEDs has significantly reduced energy costs and enhanced plant growth efficiency, supported by rebates and technical as sistance,” says Van de Sande. “This focus on innovation is complemented by a deep understanding of customer needs and sustainable practices, making us a trusted partner for

Source: www.hortidaily.com

Signify secures $1.4 million settlement in court case

terms. “Fohse was required to make quarterly royalty pay ments and provide detailed sales reports for products using Signify’s patented LED technology,” explains journalist Al Uszynski. “The conflict arose from Fohse missing a significant lump-sum payment due by 1 July 2022, and underreporting royalties from Q1 2022 through Q2 2023.” Additionally, as revealed in court proceedings, Fohse

Fohse Inc., a Nevada-based grow lights manufacturer, has agreed to pay $1.4 million (R25 million) to lighting giant Sig nify, concluding a federal lawsuit over a licensing agreement breach. The dispute, which was settled in the Southern District of New York late in April 2024, involved Fohse’s failure to adhere to Signify’s EnabLED intellectual property licensing

failed to submit sales reports for Q3 2023, hindering Signify’s abil ity to audit and reconcile financial records. “Signify claimed damages of at least $870 000 (R15 million) plus over $65 000 (R1.1 million) in accrued interest, also seeking a court-ordered accounting of all revenues from Fohse’s use of the licensed technology,” says Uszynski. The case, settled in less than six months, contrasts with a 15-month dispute with Mega Systems Inc., resolved with a $500 000 (R9 mil lion) settlement. The judgment by Judge Gregory H. Woods includes all damages and costs, based on a confidential settlement agreement reached on March 4, 2024.

Source: www.inside.lighting

23

LiD Q2 - 2024

Watt-based measures may overlook key aspects of light perception

(CIE), the spectral distribution of light is the density of radiant, luminous, or photon quantities relative to wavelength. This is usually measured in terms of wavelength or frequency. Converting spectral distribution from one variable to another, however, involves complex mathematical transformations, leading to potential misconceptions. The study also examines how light’s spectral distribution changes when expressed in photon terms, revealing significant differences from the spectral power distribution (SPD). “In the photon system, short-wavelength photons have more energy than longer-wavelength ones, altering the distribution peaks. This shift can affect how lighting professionals interpret data, particularly metrics like the blue-to-yellow ratio. Therefore, aligning the units between spectral distribution and action spec tra is essential to avoid misleading conclusions,” says the researcher. Martinsons and his team emphasise that the choice between radiometric and photon units should depend on the nature of the light-induced effects. “Radiometric units are more suitable for thermal phenomena, while photon-based units are better for photobiological reactions, including those mediated by the eye. Using photon-based units in experiments could yield more detailed insights, especially in low-light conditions.” He concludes, “We hope researchers will clear ly specify the system used to ensure accurate data interpretation.”

In lighting research, analysing spectral light distribution is crucial for understanding its interaction with living organisms. “Tradi tionally, this analysis relies on radiometric quantities like watts,” says research engineer Christophe Martinsons. “We believe this approach may need reconsideration. In my study, titled ‘Recon sidering the Spectral Distribution of Light: Do People Perceive Watts or Photons?’, we argue that focusing on the particle nature of light, specifically its interaction at the photon level, might offer more accurate insights into biological effects.” The research highlights that traditional watt-based meas urements may not fully capture the nuances of human light perception. “The spectral distribution, when viewed through the photon system, shows different peak positions and magni tudes compared to the watt-based system,” adds Martinsons. “This suggests that considering light at the photon level might provide a better understanding of its impact on both visual and non-visual systems. Thus, photons may be more relevant than watts in accurately describing human light perception.” According to the Commission Internationale de l’Éclairage

Source: www.inside.lighting.

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Ace LED unveils self-testing emergency LED driver US-based Ace LEDs’ Innovation Lab has introduced self-testing emergency LED drivers with an automated testing process and a power activate feature to streamline emergency lighting main tenance and reduce facility overhead costs.

These drivers conduct a 30-minute test every 30 days and an annual 90-minute test, ensuring compliance with safety regulations. “The Power Activate feature simplifies installation by putting the

battery in sleep mode until the luminaire is installed, eliminating the need for bat tery disconnection during setup,” reports tech website www.edisonreport.com. The sleek, low-profile design allows these drivers to fit seamlessly into var ious linear lighting fixtures, maintaining aesthetic integrity. “They are available in multiple wattage options, including 10, 14, 20, and 30 Watts, with the 30 Watt Class 1 model ideal for warehouse and high-ceiling applications,” adds the web site. These innovations enhance opera tional efficiency by removing the need for manual inspections and reducing costs.

Source: www.aceleds.com

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LiD Q2 - 2024

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