Lighting in Design Q4 2022

www.crown.co.za Q4 - 2022

Leading local lighting companies weigh in on sustainability

Considerations for cannabis and horticultural lighting

Lighting for learning at Curro Durbanville

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Ed Space

Editor: Gregg Cocking (lighting@crown.co.za) Advertising manager: Carin Hannay (carinh@crown.co.za) Layout: Katlego Montsho • Circulation: Karen Smith Cover: Curro Durbanville High School, photography by Burger Engelbrecht 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 2022 Q2: 6 667 • Printed by: Tandym Print All issues of Lighting in Design can be viewed on our website. Visit www.lightingindesignmagazine.co.za 2 022 has been a curious year. The after-effects of the pandemic, surging infla tion, supply chain issues, the KwaZulu-Natal floods, Phala Phala, monkeypox, the Russian invasion of Ukraine, the passing of Queen Elizabeth II … it has been a bit of a rollercoaster. Yet business has to go on despite whatever setbacks arise. So, where is the lighting industry going? The LED industry certainly takes the lead when it comes to driving innovation, developing new technologies, and making frequent break throughs. The kind of lighting in our environment influences our physical and emotional state, refines the space, and alters how architecture is perceived. Dim and slight flickering of old fluorescent lamps can lead to corrosive concentration and unrest, whereas spaces with the best lighting evoke positive emotions of happiness and enthusiasm. As architects, designers, and builders are understanding the effects of light on humans, they are increasingly adopting human-centric lighting to help workers become more efficient and productive. LED-based human-centric lighting (HCL) offers many potential advantages in offices and workspaces, increasing the value for occupants in the environments where luminaires are installed. Healthcare facilities are also utilising HCL to add cooler corrector colour temperatures (CCTs) to keep employees alert and warmer CCTs in patient’s rooms to keep individuals in comfort. Educational institutes are adopting LED-based HCL lighting to keep the students alert and at ease. Even aircrafts install LED-based HCL systems to provide passengers with an enhanced flight experience by customising light during flight activities such as boarding, mealtimes, sleep, and to alert passengers as they prepare for landing. The global food system accounts for a quarter of the world’s greenhouse gas emissions. Besides, the expansion of metropolitan hubs is gradually reducing ara ble lands, creating the need for more alternative farming practices such as vertical and indoor farming. Increased efforts towards sustainable agriculture have led to increased indoor farming adoption that utilises less energy, water, and land than traditional farming methods. Using artificial LED lights in horticulture, farmers can either supplement natural daylight or replace it entirely to produce a wealth of ben efits, such as the ability to fine-tune quality and increase yield. LED lights provide just the right amount of light to the plant where it needs it the most and radiate less heat than conventional lighting, which increases yields in dark months of the year. Besides, LEDs provide the right heat-light balance to improve the propagation of vegetables, fruits, leafy greens, herbs, and floriculture crops in a climate-controlled environment. The LED grow lights can help retain the unique properties of crops, enhance flavour, and maintain the nutritional value of the crops. From a business perspective, LED grow lights save the operator much money for the operator since they consume less power, generate less heat, and require less maintenance than HPS lights. High yield from LED grow lights adds to more crop productivity, which contributes to the profitability of the business. As you can see, it is an exciting industry to be in despite the global challenges, and whatever 2023 throws at us, I’m sure the lighting industry will respond with innovation.

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EDspace Editor’s comment. Lighting and sustainability

Over the last couple of years, sustainability has become a key topic, touching every aspect of our lives, lighting included. This article describes the major touchpoints between lighting and sustainability, including examples of what some of the leading local lighting companies are doing with respect to sustainability. Considerations for cannabis cultivation If there is any doubt about the economic viability of cannabis as an agricultural commodity, the cannabis industry and ever-growing list of approved SAHPRA Licensed Facilities funded by both local and International investors tells a very positive story. Lighting for Namibian veterinary hospital The UNAMVeterinary Academic Hospital, a newly developed vibrant, and high-tech practical training hospital and small animal facility in Namibia, has been recently completed. Lighting for learning Curro Durbanville High School is an independent school in Durbanville with a high school phase that provides high-quality education for learners from Grade 8 to Grade 12. With state-of-the-art sports and academic facilities, this school stands out from the rest. BoardwalkMall precinct brings a newexperience to Gqeberha Following its grand opening on 22 September 2022, the Boardwalk Mall precinct takes pride of place as a prominent landmark just a few metres from the Hobie Beach in Gqeberha. LED lighting in hospitals Lighting applications in hospitals are wide and varied since different areas with their own specific purpose have different requirements: ward areas, treatment areas, observation areas, examination rooms, waiting and circulation spaces and operating theatres each have different lighting requirements and require specific design criteria. News LED lighting solution for Metical Square by BEKA Schréder; Signify’s new A-class LED tube: an innovative solution for rising energy prices;Tridonic extends range of dimmable linear industry drivers; Radiant answers solar lighting FAQs; and Altron Arrow, an end-to-end solutions provider.

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RADIANT

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Lighting and sustainability

Over the past couple of years, sustainability has become a key topic, touching every aspect of our lives, lighting included. This article describes the major touch points between lighting and sustainability, including examples of what some of the leading local lighting companies are doing with regards sustainability. C limate change is a major driver behind the growing importance of sustainability. The need to reduce CO 2 emissions calls for a

Indoor projects are often realised with edge lit panels with a 100 lm/W efficacy while recessed LED luminaires offering 140 lm/W are available. One of the major reasons behind all this is the fact that part of the lighting industry still talks in ‘Watt’ when it comes to expressing the light output instead of using the correct parameter ‘lumen’. This hampers the uptake of the more efficient LED solutions. An additional energy saving technology – the use of sensors/lighting controls – is not always considered and hence the full energy saving potential is not always grasped. Lighting and the use of hazardous materials That fluorescent lamps contain a tiny amount of the hazardous material mercury is a well-known fact. A lesser-known fact is that due to the reduction in energy use when changing from incandescent lamps to compact fluorescent lamps less mercury is emitted in coal fired power plants, given the fact that coal contains trace amounts of mercury. The conversion to LEDs means that when it comes to mercury, two birds are being killed with one stone as LEDs do not contain mercury and the further reduction in energy-use when changing to LEDs means less mercury is emitted by coal-based

transition from fossil fuels to renewables. Energy efficiency plays a key role in this transition as it reduces the need for fossil fuels on one hand and at the same time reduces the investment needed for the change-over to renewables. Driven by the conversion to Solid State (LED), lighting has made huge progress when it comes to energy-efficiency as can be seen in table below:

INSERT TABLE FROM WORD DOCUMENT Years Lighting share as % of global electricity consumption

2006 2018 2030

19% 13%

8% target

There is, however, still a huge potential for further energy reduction in lighting. There is a perception in the market that ‘as long as it is LED, it is energy efficient’. While this is true, LED efficacy is also a clear example of ‘good, better, best’. A strong focus on price means that the average LED bulb on offer in South Africa has an efficacy of roughly 80 lm/W, while one of the leading suppliers has announced a bulb with an efficacy of over 200 lm/W.

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LEDs has led to a shift in materials used. Traditional light sources like incandescent lamps and fluorescent lamps were mainly made up from glass and some metal (lamp foot/lamp caps). If we look at the LED alternatives available today (LED bulbs and LED tubes) we see an increased use of plastics. The same is valid for luminaires. Recessed luminaires for T8 and T5 fluorescent tubes were made from metal while today’s LED panels have a high plastic content. Metal open channels for fluorescent tubes are now being replaced with plastic LED battens. The lighting industry has taken some measures to increase repairability via standardisation of some components like LED modules (via the Zhaga consortium); however, the impact is limited. A concept like ‘Light as a Service’ (LaaS) has the potential to increase the circularity of (LED) lighting. The LaaS concept entails that the lighting supplier remains the owner of the lighting installation while the user pays a monthly or yearly fee for the use of the installation. Because the supplier is also responsible for the maintenance of the installation the supplier will make sure the installation can be easily repaired or upgraded when the LaaS term is finished. The uptake of LaaS is however very slow, especially in South-Africa where end-users seem reluctant to go for longer term commitments, despite the fact that LaaS would allow them to have an energy-efficient lighting installation without an upfront investment. Local versus global sourcing The conversion to LEDs combined with the general trend towards globalisation has increased the share of import of lighting products into South-Africa, with the majority of imported products coming from Asia. The transport of all these products contribute to CO 2 emissions. Local sourcing would decrease the need for transport and hence this is preferred from a sustainability perspective. Covid-19 and the impact on supply chains has exposed the vulnerabilities of global sourcing and this, together with the increased transport costs might lead to a higher share of local sourcing. A technology like 3D printing will also contribute to this. Health and well-being With sustainability such a broad topic we also need to consider the relation between health & well being. There is both a growing understanding of and focus on the health aspects of lighting. Light levels and the spectral distribution of light impact humans and the circadian rhythm. (Outdoor) Lighting also has an impact on wildlife. There is growing awareness of the need to reduce light

electricity generation. LEDs, like other electronic goods, can have some negative environmental impact as they contain minimal amounts of lead, copper, nickel and silver. As LEDs need electronics for proper operation, we need to look beyond the light source. Both Electronic Control gear (used e.g., to operate compact fluorescent lamps) and electronic LED drivers (like many other electronic devices ) consist of electronic components mounted on a Printed Circuit Board which is then placed into a housing. The various electronic components may contain hazardous materials, like lead, mercury, some heavy metals, flame retardants, and certain phthalates. Lighting and circularity Circularity is considered the next frontier of sustainability. It means that a product is created with its own end-of-life taken into account. In a circular economy, once the user is finished with the product, it goes back into the supply chain instead of the landfill. While the conversion to LEDs resulted in improvements on the two previous aspects of energy-efficiency and the use of hazardous materials, this is not the case when it comes to circularity. This is strange given the longer lifetime of LEDs compared to traditional light sources. In the case of traditional lighting, we saw one component, being the light source, being replaced on a regular base, while the other parts like the luminaire and all its internal components were discarded of at the end of the technical – or economical life. Occasionally some of the internal components, like the control gear or lamp holder needed replacement but given the standardisation of these components this was in many cases feasible. With LEDs the situation is rather different. To start with, in reality the long lifetime of LEDs is often being sacrificed due to cost pressure (operating the LEDs at a high current reduces the costs but it also decreases the lifetime). LEDs are often embedded into the LED luminaires and, when some of the LEDs fail, often the full luminaire needs replacement, as is the case with the popular side-lit LED panel. The electronic LED driver is often the weakest component. Given the huge variety of LED drivers and the more complicated matching of drivers and LEDs (both operating current and forward voltage must match) finding a suitable replacement driver is a challenge. Again, this often can lead to a situation where the full luminaire is thrown away in case of a driver failure. So, the conversion to LEDs has led to a situation where, in many cases, luminaires are no longer being repaired but simply replaced leading to increased waste. Additionally, the conversion to

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pollution, while there is more and more knowledge available on the impact of colour temperature (CCT) on various species, e.g., a lower CCT of outdoor lighting reduces the harmful impact on insects. Conclusion There is a strong relation between sustainability and lighting and the growing impor tance of sustainability will have a large impact on the lighting industry. Demand will gradually shift to the most efficient solutions, there will be a growing demand for control solutions and repairability/ replaceability/circularity will grow in importance. Lighting companies with a pro-active sustainability approach will be able to benefit from all of this. BEKA SCHRÉDER BEKA Schréder is part of the renowned Schréder group and is one of the pioneers of LED lighting in South-Africa. Sustainability is a topic close to the heart of the Schréder family shareholders for generations. Recently a cohesive, company-wide sustainability strategy was developed, called ‘Together for our Future’. Circularity is a key element of Schréder’s sustainability ap proach. Circularity focuses on reducing the environmental bur den by valorising the flow of all materials. It is mainly defined in opposition to the traditional linear economy: take, make and dispose. In a circular economy, products are part of a value network where they will be used for as long as possible. Then, depending on their characteristics, they can be reused, refurbished, upgraded or recycled. Schréder takes circular economy into account, right from the offset. Before we start to design our products, we incorporate it into their DNA. After a careful analysis of the potential circularity of our luminaires, Schréder decided to introduce a ‘circular lighting’ product label. This label acts as a circular indicator for our customers. REGENT LIGHTING SOLUTIONS Regent Lighting Solutions (RLS) positions itself as an African lighting solutions and luminaire manufacturer. RLS aims to grow as a company while trying to minimise any negative social – and envi ronmental impacts. It addresses sustainability in different ways: • On the sales side RLS advises its customers in detail about the energy-use of the various lighting solutions while placing more and more emphasis on the use of sensors and controls as these further reduce energy-consumption. • On the product side RLS is taking steps to move away from a linear economy to a more circular economy as all its products are designed for disassembly, enabling future harvesting of parts. By using aluminium as the dominant manufacturing material, RLS products are easily recycled. RLS ensures that all electronic waste is disposed of correctly and in accordance with the industry’s waste management act. • Looking at the operations side the following can be noted: - RLS is fully up to date with its Atmospheric Emissions License (AEL). An AEL is a permit allowing license holders to demonstrate certain processes or appliances are operated in accordance with national air quality regulations. - Since end of 2014 a 300 kwp roof top grid-tied photovoltaic solar system generates ca 400 000 kWh per year, saving 41 500 tons of za.schreder.com/en/together-our-future

TRIDONIC Tridonic South-Africa, part of the ZumTobel group, is one of the leading lighting technology providers to the South-African mar ket. Tridonic is convinced that the lighting industry must develop solutions for the biggest challenge to date, namely safeguarding our planet and its natural resources. Tridonic’s aim is to create solutions and products which are deeply rooted in the circular economy supporting our customers in their sustainable projects. Cradle to Cradle or C2C is the focus of the ‘Sustainable Tridonic’ programme. It is a design concept aimed at developing safe, circular and responsibly manufactured products. The goal is not only to minimise negative effects but also to leave a positive environmental footprint. Cradle to Cradle is about seeing waste as a nutrient for new products. At Tridonic, we believe that C2C can change the lighting industry by promoting new and highly ambitious design rules. To put words into action Tridonic is proud to announce that for the first time anywhere in the world, a company in the electronics sector has been awarded the Cradle to Cradle Certified® in Bronze Sustainability Certificate for a lighting component. With its LLE, QLE and CLE LED modules Tridonic has met the strict requirements of the standard and is now supplying these recyclable and responsibly manufactured LED light sources to its customers in the lighting industry. Apart from the C2C approach Tridonic’s wide range of LED modules, LED drivers and lighting controls enable South-African custom ers to implement very energy-efficient lighting solutions. CO 2 , equivalent to 99 cars being taken off the road per year, 128 homes powered per year and 14293 trees cleansing the air per year. - RLS incorporates the use of piped natural gas in heating their furnaces as it is the cleanest and most efficient available energy source for aluminium melting - Powder coating is considered a ‘green’ technology that doesn’t generate harmful solvents or airborne pollutants. Compared to painting, powder coating reduces finishing line emissions, produc es less harmful waste by-products, and doesn’t pose a significant health risk to employees or neighbours. - RLS’s corrugated packaging is made from 100% recycled paper and is recyclable. Its plastic film supplier uses recycled low-density polyethylene to produce their film. When recycled, LD-PE’s environ mental effect is less than bio-degradable alternatives due to its low energy and natural resource consumption. In short, Regent Lighting Solutions aims to be not only at the forefront of new technology but continuously aims to reduce its environmental footprint with, from a sustainability perspective, superior alternatives. www.tridonic.com/com/en/tridonic-sustainability.asp

www.regentlight.co.za/about-us/sustainability

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LEDVANCE

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Considerations for cannabis cultivation Contemporary indoor cannabis cultivation usually involves at least one of three artificial light sources: HID, CFL, and LED. However, the LED industry for horticultural applications is growing rapidly because of the number of advantages it has. By Mark Norris, Giantlight.

I f there is any doubt about the economic viabil ity of cannabis as an agricultural commodity, the cannabis industry and ever-growing list of approved SAHPRA Licensed Facilities funded by both local and International Investors tells a very positive story. It is clear the burgeoning industry’s value will continue to grow. Concurrently, the need for cultivation and manufacturing facilities will expand as more SAPHRA license applications get activated with companies wishing to cash in on the crop. To be successful, these owners need design engineers who can specify the complex infrastructure needed for a bountiful harvest. Cannabis is typically grown in controlled environments, such as greenhouses and indoor cultivation facilities. Such controlled environment agriculture facilities make it easier to meet certain government regulatory requirements. When designed correctly, these facilities also provide many benefits related to quality control and production. Most indoor cannabis operations are vertically integrated facilities, with indoor cultivation, post harvest processing, manufacturing, quality control and packaging functions under one roof. As cannabis legalization advances and drives market growth, there is little doubt that best practices for legal growth operations will continue to develop. So, as a leading South African OEM in LED

lighting design and local manufacturer to the ‘Growing Game’, we have been exposed to the reality that there are many elements to this horticulture segment with many key focus subjects to understand and focus on to name but a few here below to build a picture in words. In the meantime, be sure to rely on your HVAC, plumbing, electric, and lighting vendors for the advice you need to make sure that your indoor grow room is safe and efficient. Themanagement and reduction of variables sees a tightly controlled environment of (temperature, humidity, light, water, nutrients, carbon dioxide and airflow) which leads to maximum yields and product quality. All of the above are equally important and play a role in the process of building a facility. To this effect, we are sharing our journey into the world of grow lighting; Lights, Lights, Lights: Illuminating your options Choosing the right grow light for your cannabis is among the most important decisions you’ll make. From looking after seedlings and clones working through vegetation phases to the ultimate Flowering cycle with our LED product combination designs ranging from 55 W through to 1000 W and more depending on your Light Level Requirements. We want you delivering superb yields. Most importantly, don’t spend money on a

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tiple tiers. Temperatures of 22.3 to 29.5 de grees Celsius and 45 percent to 60 percent RH are the typical environmental conditions, and lights are on for 12 hours each day. Best grow room design advancements So, what type of grow lighting is best? This is a decision that will depend on various factors, including the size of your growing area, the type of cannabis you’re growing, and last but not least, how much you can spend. If you require a light for seedlings and clones, or you happen to have a ‘micro grow in a very small space (Grow Tent), you are likely best off with a simple CFL light. For slightly bigger grows, consider a decent LED light anywhere from 55 W-600 W. As there won’t be much heat from the light, you may be okay with a simple exhaust system and a fan. For medium to large growing operations, you can look into high-end LED fixtures, as opposed to traditional HID lights Don’t just look at wattage — Power equivalents between types of lights Now, be aware that a 200 WCFL isn’t the same as a 200 W light LED, and neither are the same as a 200 WHID. The wattage only indicates howmuch power the fixture uses, not saying anything about the light output. Because lighting technologies differ in their efficiency, you can’t compare them based on their wattage alone. This also means that a LED fixture stated as being 600 W doesn’t necessarily emit the same amount of light (and therefore produce the same yields) as, say, a 600 W HID light. Honestly, the only way to determine true light output is to go over the specs from the manufacturer. Better yet, ask other growers for their experiences with a particular make or type of light – that way you’ll know what to expect With the 4 key stages and zones identified to consider – we now need to plan to ‘light up’ a cannabis farm. Oh, that’s easy I remember thinking to myself – Plants, lights, action and cannabis is grown! How hard can it be to make a cannabis grow? Here is how the understanding process was ‘unpacked’. When you set up an indoor or greenhouse cannabis grow room, counting on daylight is unreasonable. However, cannabis is a plant just like others, so it needs considerable quantities of light to grow, develop, and mature. Light is a vital

grow light without getting informed at first. A great ‘bargain’ may ultimately just be a waste of your hard-earned cash. A typical indoor grow room when planning your LED lighting requirements Indoor cannabis operations typically include four types of grow rooms, each with unique environmental conditions, grow light types and schedules, and plant densities. These rooms are typically referred to as mother, clone, vegetative (or veg), and flower. • Mother room. This room contains large plants with the genetics desired for the production plants. The plants are typically used for six to eight months before being replaced. Mother rooms occupy a relatively small area in relationship to the other grow rooms, generally about 5 percent of the total cultivation space. Environmental conditions are typically 21 degrees to 29.5 Celsius and 40 percent to 55 percent relative humidity (RH). Grow lights are typically kept on for 18 or more hours each day. • Clone room. Leaves from Mother plants are clipped and used to propagate new plants in small containers or trays on racks within the Clone room. After two to four weeks, the plants are transplanted to the Veg room. Clone rooms are roughly the same size as a mother room. Clone room conditions can vary based on grower preferences, but typically fall in the range of 15 to 26 degrees Celsius and 50 percent to 70 percent RH. Grow lights are on for 18 to 24 hours per day. • Veg room. Plants are placed in larger con tainers on stationary or moveable benches, generally with two tiers or levels, and spend about six weeks at this stage. On average, Veg rooms will require about 20 percent of the total facility cultivation area. The space temperature can range from 21 to 29.5 de grees Celsius and humidity from 50 percent to 65 percent RH. Grow lights are kept on for 18 hours per day. • Flower room. Flower rooms take up about 70 percent of the total indoor grow area of a cannabis facility. This is the last stage of growth before harvest, lasting six to 10 weeks. Most Flower rooms use either stationary or moveable benches, and some higher production operations will have mul

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them around 100 W of LED lights, increasing to 160 W by the flowering stage. Ultimately, it’s necessary to choose the LED lights in accordance with their grow light spectrum measured in micromoles. Cannabis is on the higher end of the grow light need, so you will need around 800-1300 micromoles to grow your plants to their fullest potential Setting up the LED Lights Now it’s time to arrange the grow room equipped with LED lights. Here comes the most crucial issue – that of distancing your plants from one another and the lamps. How far should LED light be from cannabis plants? As a rule, lights below 300 W should be positioned 30-70 cm away from the plants, while lamps with power exceeding 300 W should be 70-80 cm above the plants. Still, leave some space for flexibility in the lamps’ positioning, as cannabis needs more LED light during the flowering stage. So, you will need to lower the lamps for the flowering period. Conclusion You can grow cannabis with LED lights like a pro with all these tips, maximising your yield and reducing your garden’s dependence on daylight. Choose your LED lights carefully depending on your grow room’s size and the number of plants you have. Importantly, don’t forget to adjust the distance depending on your plants’ growth stage and monitor their response closely to avoid light burns and yield losses. InDorSun InDorSun is a proudly South Afr ican LED manufacturer whose founders originated from the solar and PV industry developing energy efficient solutions for a wide variety of industries. With manufacturing partner Giantlight, InDorSun has shone the light on cannabis horticultural lighting. Together the companies manufacture LED grow lights which produce full -spectrum light that replicates the colour of the sun. Giantlight Giantlight is at the forefront of lighting technology, specifically solid state lighting and everything relating to LEDs and special effects. The company strives to remain the market leader in new and innovative lighting applications and continually brings new products to the market first. From design through manufacture and installation, Giantlight projects make a visual statement. Giantlight offers a comprehensive effect lighting solution. www.indorsun.co.za

component of cannabis’s photosynthesis, and you as a grower need to take proper care of providing sufficient light to your plants. As a rule, cannabis growers have been using high-intensity discharge (HID) lights for their grow rooms but buying the whole set of lights even for a small plantation is just too costly for a plantsman. Thus, LED lights have gradually gained traction in the cannabis growing business, as they combine affordability with the correct number of lumens needed for growing cannabis properly. If you want to grow cannabis with LED lights, look through our Horticulture Product Range to find everything you need for a safe, productive planting endeavour. Benefits of LED light use As we’ve just discussed, LED lights quickly won the hearts of small-scale growers because of their benefits compared to expensive HID lamps and the CFLs that were insufficient for the flowering phase. Here are the advantages of LED lights over other options: • Affordability. A small LED light kit for a home garden will be much cheaper than a similar set of HID lamps. • Cost-efficiency. A regular LED light consumes way less electricity than an HID lamp would. Thus, you will receive lower energy bills. • Sustainability. Your LED lights will serve you much longer, with their average use time equalling 50 000 hours. To compare, a regular HID or CFL lamp lasts only around 20 000 hours. • Water savings. Some HID lamps may be efficient, but they consume large amounts of energy and emit significant heat, thus causing cannabis plants to consume more water. LED lights are much gentler in terms efficient heat dissipation. So, they won’t dry your plants or substantially increase the temperature in the grow room. Choosing the equipment Now that you’ve decided to use LED lights in your grow room, you might be wondering, “what are the best LED grow lights for cannabis?” In most cases, it’s about choosing the correct PPFD levels required and a reputable OEM brand providing you products of both quality and performance in conjunction with a properly planned design and layout. This way the LED lights ultimate performance is achieved for you if properly chosen and set up to specifications. • If you are a micro-grower with 1-2 plants to care for, your LED grow light shouldn’t really exceed 25 W. • If you have a grow room of three by three feet (suitable for four plants), it’s necessary to give

www.giantlight.co.za

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G I A N T L I G H T

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Illuminating a Namibian veterinary hospital The UNAM Veterinary Academic Hospital is a newly developed vibrant, and high-tech practical training hospital and small animal facility in Namibia has been recently completed. T he newly constructed outpatient unit of the Unam School of Veterinary Medicine’s Veterinary Academic Hospital was officially PRODUCTS USED •

Istria Side Entry 24 W RLS360 Black 4000 K. Nano Surface mounted 1200 mm 33 W 4000 K. Luxon Prism Backlist Recessed frame 36 W 4000 K. Luxon Prism Backlit 600 x 1200 mm Recessed 50 W 4000 K. Strata square 1500 mm Black pendant 95 W LED 4000K. Strata L Shape suspended 2635 x 3323 mm Black 4000 K 94° radius. Elux 70 38 deg White 11 W + 16 W 4000 K. Tower 2 Pendant 120mm Dia Black 1145 mm long Satine Acrylic Tube 33 W LED 4000 K suspended 500mm, 1000 mm and 1500 mm individually.

inaugurated by Namibian vice-president Nangolo Mbumba, in his capacity as UNAM chancellor. The outpatients unit, which was constructed with funding from the African Development Bank, will significantly improve the public’s access to veteri nary services. The outpatients unit boasts modern veterinary science technology that is distributed across six consultation rooms and a fully equipped laboratory. The Strata curve fromRegent Lighting Solutions adds a decorative element above the reception desk of the facility. The Tower 2 Pendant was supplied with three different suspension heights, creating a theatrical effect at the entrance. The Luxon LED Panel was the ideal lighting solution throughout the offices and consultation rooms which was supplied with a recessed frame for gypsumboard ceilingmounting. Elux 70 downlights were used for passages for general illumination, while the Istria side entry is used for the ubiquitous exterior lighting which provides illumination which is critical for safety and security.

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PROJECTTEAM Architects: Ricardo Michaels Architects Electrical engineers: GS Fainsinger and Associates cc Consulting Engineers Lighting supplier: Pupkewitz Megatech Photography: Creative Lab

www.regentlight.co.za

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PROJECTTEAM Architects: BPAS Architects Electrical engineering: KLS Consulting Engineers

Interior design: B-Sense, ORC Main contractor: MNK Projects Photographs: Burger Engelbrecht

Lighting for learning Curro Durbanville High School is an independent school in Durbanville with a high school phase that provides high-quality education for learners from Grade 8 to Grade 12. With state-of-the-art Sports and Academic facilities this school stands out from the rest. L ocated to the northeast of Durbanville in the Western Cape, the site forms part of the larger urban plan for the Phesantekraal area. The

part of the theatre, aesthetically and primarily from a functionality aspect. One specific example were the booth seats: The interior designers wanted to create a false skylight within the booths and therefore specified daylight ceiling panels that lay on top of the organic cut outs. In this way, it creates the illusion that you have natural light coming in above you, allowing the space to feel fresh, cooler, and inviting. “Lighting is a powerful tool in architecture, whether spaces are artificial or naturally lit – it renders the buildings and through successful application can enhance spatial quality and user experience,” explain the architects. “Being an educational project, function in terms of lighting selection was key; illumination to create a positive stimulating educational environment.” The interior designers concur: “Expertly placed lighting adds atmosphere to a space, bringing an interior to life. Great lighting creates depth and height and draws attention to your most impressive areas. We believe that the lighting in this project has created a vibrant space where learners want to be. It is definitely bringing energy and balance to the interior.” The school has been craftedwith a learner-centric approach through collaborative and investigative processes, and overall, the school responds to the

brief called for a high-quality innovative school with a range of cultural and sports facilities. It was im portant that the design process was not isolated to a single author. The scheme came together through a collaborative engagement with learners, teachers, and other consultants. Inspiration was drawn from the surrounding landscape and the mountains in the distance, the colour of the canola fields, and the materiality of existing structures located on and around the site. The design emits an exciting take on form, texture, and scale. Having vast experience in design of educational buildings and facilities, for BPAS Architects it was a collaborative process with specialist consultants and suppliers to achieve the desired outcome in terms of the lighting. Therefore, the lighting formed an integral part of the facility; from low level external lighting, feature curvilinear suspended strip lights which relate to shaped skylights above them in main lobby spaces, to specific lighting quality requirements in the respective spaces (cafeteria, teaching and collaboration spaces, studios, and labs). Well considered lighting forms an integral

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ultimately, the building’s success will rely on the successful incorporation of its users, shifting from the conventional to flexible and interactive learning spaces. “We have learnt a lot and truly enjoyed working with the consultant and manufacturing team. If there is one takeaway from this, it is that good teamwork and communication can make any project run smoothly,” conclude the interior designers.

site through its sustainability considerations and non-stylized architecture. Ultimately, the building’s success relies on the successful incorporation of its users, shifting from conventional to flexible and interactive learning spaces. The conventional ‘school typology’ consisting of classrooms that are framed by four walls was challenged with the concept of constant interaction between spaces. It has been an exciting extensive research-based project;

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Boardwalk Mall precinct brings a new experience to Gqeberha

Following its grand opening on 22 September 2022, the Boardwalk Mall precinct takes pride of place as a prominent landmark just a few metres from the Hobie Beach in Gqeberha. Photography by Barry Goldman D esigned by MDS Architecture, the first phase of Boardwalk Mall opened in March 2022 with a variety of entertainment options and several tenants, who traded while the second phase was being completed. Pierre Lahaye, MDS Architecture partner, says that Boardwalk Mall is an important part of the overall vision for the precinct, linking with the Sun International Boardwalk Casino and the Boardwalk Hotel. “Our design is cognisant of integrating into the existing architecture and creating a streetscape that has developed over time. There are several pedestrian access points to the building and to the rest of the new offerings which serve to integrate the precinct into the urban landscape. It is quite something to be able to step out onto the beautiful beachfront promenade directly from the shopping centre,” says Lahaye. The contemporary interpretation was achieved with elements like the shape of the roofs and an aesthetic of a refurbished dockside building. The mall is curved, evoking waves and encouraging further exploration beyond what is immediately visible to the eye. Industrial chic elements include exposed structural details and tactile materials in the interior. Sculptural elements were introduced to celebrate the ocean, including boat-shaped origami elements which were used as light fittings. The promotional court features a ceiling pattern reminiscent of a giant compass. The bathrooms, which Lahaye says are an important aspect of retail design, are tactile, featuring timber finishes for a contemporary nautical feel. “All these elements combine with metal work, fabric and illumination to both welcome and entice visitors to explore Boardwalk Mall.”Lahaye notes that the natural and

artificial lighting design is an integral part of the architecture and interiors and is a combination of accent feature lighting and hidden general lighting. “Linear lights were used successfully throughout to accentuate the architectural forms, while the decorative lighting elements in the passages provide a ‘directional line’,” he says. Furthermore, Lahaye notes that where there is natural lighting, the artificial lighting is designed to dim as required.

www.mdsarch.co.za

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LED lighting in hospitals Lighting applications in hospitals are wide and varied since different areas with their own specific purpose have different requirements: ward areas, treatment areas, observation areas, examination rooms, waiting and circulation spaces and operating theatres each have different lighting requirements and require specific design criteria.

I n addition to functionality, hospital lighting also aids in improving patient care and comfort. There are three main parameters to be considered in hospital lighting design 1. Lighting level 2. Colour Rendering Index 3. Colour temperature Lighting level Lighting level or illuminance is the amount of light measured on a plane surface or the total luminous flux incident on a surface per unit area. Lighting level is measured in Lux (Lumens /sq. metre) or Footcandle (Lumens /sq. ft.). Lighting levels have been standardised for various occupancies and applications and published by various standards agencies around theworld.The IESNA (Illuminations Engineers Society of North America) and the British and European Standard BS-EN12464. Colour Rendering Index Colour Rendering Index is the ability of the light source to show object colours realistically or naturally. The colour rendering Index (cri) is a scale from 0 to 100 percent. The higher the CRI the better the colour rendering ability. Light sources with a CRI of above 90 percent is considered excellent. Colour temperature Colour temperature is measured in the units Kelvin and is the standard method for measuring the colour of the light emitted from a lamp. The reason why the colour measurement uses a temperature unit Kelvin is because it is correlated to the colour of a piece of steel heated to the prescribed temperature 2700 K, which is yellow. Warm white colour increases to 5500 K which is similar to the light outside on a sunny day. Energy efficiency and LED lighting Hospitals require lighting 24 hours per day 365 days per year. It is therefore prudent that the lighting solution provided for the hospital is efficient

and meets the requirements for CRI and colour temperature. Over the years the technology of LED lighting has improved to provide required CRI and colour temperatures suitable for all hospital environments. It is therefore important when specifying LED lighting for hospital areas attention is paid to the CRI and colour temperature. The CRI range for LED lights is 70-98 (Montes de Oca, 2017) making it the closest to natural light compared to other light types. LED lights are therefore suitable for use in healthcare facilities and very effective in improving medical diagnosis of patients. In addition to CRI and colour temperature the design should also follow the standards for lighting levels as specified by the IESNA or the British/ European Standards. The IEC standard 60601-2- 41 “Particular Requirements for Surgical Luminaires and Luminaires for Diagnosis “specifies that the colour temperature for lighting for diagnosis should be between 3000 K and 6500 K and Colour Rendering Index should be between 90-100 percent. The general rule of thumb for most active areas within a hospital building is to maintain a colour temperature of 4000 K or more (Thorn Lighting, 2017). For areas such as treatment areas and, operating rooms where colour representation is important, lamps with a CRI of 90 percent or greater and colour temperature of 5000 K is required. In ward areas where patient comfort is required lamps with warmer colours 3000 K and CRI of 85 to 100 is desired. With the developments in LED lighting, most manufacturers of surgical lighting fixtures have standardised on the use of LED lighting in their surgical lighting fixtures. Energy efficiency of LED lighting LED lamps are amongst the most efficient lighting source suitable for residential, commercial, industrial and institutional applications. Luminous efficacy of a light source is measured in terms of lumens/Watt. This essentially means how much

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within hospitals through controlling the bodies Circadian system, help to reduce depression amongst patients, decrease length of stay in hospitals and ease pain (Joseph, 2006). It is also important to note that meeting the lighting requirements of hospitals whilst also limiting energy consumption is one of the major challenges faced in hospital lighting design. Colour temperature/Correlated colour temperature (CCT) Table 3 below illustrates the different ranges of Colour temperature: A low CRI can lead to a misrepresentation of body features which may lead to misdiagnosis and improper treatment. Areas where diagnosis, treatment or laboratory analysis is being done a CRI of 90 or greater is recommended. For all other areas within the hospital, a CRI is 80 is sufficient, however, under no circumstances should lamps with two different CRI values be used in the same place (Thorn Lighting, 2017). References • Joseph, A. ( 2006 ) . Impact of Light on Outcomes in Healthcare Settings. California: The Center for Health Design • Montes de Oca, S. (2017, Feburary 23). The Advantages of LED Hospital Lighting. Retrieved from Super Bright Lights: https:// www.superbrightleds.com/blog/advantages led-hospital-lighting/4021/ • Rea, M. S. (2000 ) . The IESNA Lighting Handbook, Ninth Edition. New York: IESNA • Thorn Lighting. ( 2017) . Thorn Technical Handbook. In T. Lighting, Thorn Technical Handbook ( pp. 69 -77) . Austral ia: Thorn Lighting • Tulla, A. (2016, July 18). Design Clinic: How to light a Hospital Ward. Retrieved from Lux Review: https://luxreview.com/design clinic/2016/07/how-to-light-a-hospital/

visible light is produced for each watt of electricity used. The higher the value the more efficient will be the light source. In addition to the efficiency of the light source the lamp life also plays and important role in lighting economics since the frequency of lamp replacement also impacts on cost. In this regard LED lamps can last up to 50 000 hours. This value increases daily as the technology improves. It is, however, important to note that the efficiency of the LED lamp decreases with time. The following is a tabulation of typical lumens/W values for different light sources:

From the above tabulation it can be seen that the only light source which satisfies all the criteria in terms on efficiency, CRI and lamp life is the LED light source. IES Lighting Levels for Hospital Areas Table 2 below lists lighting levels for some areas in a hospital: Lighting levels have a direct impact on patient health and mood. Studies show that proper lighting

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LED lighting solution for Metical Square The Bank of Mozambique, in partnership with the Municipality of Pemba, has built the Metical Square on Wimbi beach in Pemba, Mozambique. This forms part of a countrywide rollout of monuments celebrating the local currency. BEKA Schréder is proud to have supplied the LED lighting solution for this pres tigious project. The Metical Square has been built in a popular tourist spot and has created social areas for locals and tourists to enjoy, over and above the cultural value of the monument. BEKA Schréder’s lighting solution was chosen for the aesthetical value, durability and performance. All the products have been designed and manufactured in South Africa, thus taking the continent’s harsh environmental factors into account, ensuring a long lifetime. Metical Monument This unique monument is illuminated by the LEDSTREAM LED floodlight. This compact floodlight is the perfect solution for this application. It is an efficient alternative to compact fluorescent, high pressure sodium and metal halide lamp sources. Various light distributions are available for customized projects, providing efficiency and visual comfort. The LEDSTREAM incorporates thermal feedback to preserve the lifetime in ambient temperature environments of more than 35˚C. Park ZELA LED post tops on glass fibre reinforced polyester (GRP) poles and LEDPOST LED bollards have been installed around the park, adding to the beauty of the area. The ZELA emits a pleas ant, low glare light, making it perfect for architectural spaces. Available with symmetrical or asymmetrical light distributions and various lumen packages, the ZELA luminaire offers flexible and cost-effective indirect lighting for the creation of ambiance. BEKA Schréder’s GRP pole, the BEKAPOLE, is non-corrosive, maintenance-free, light weight, vandal-resistant and sustainable. Over time, it will outlast wood, concrete, steel and aluminium under similar climatic conditions. It is preferred by architects, developers and local authorities for its aesthetic appearance, strength, ease of installation and inherent safety for road users. The BEKAPOLE has virtually unlimited applications. It can be manufactured to any requirement relating to the number and configuration of luminaires to be mounted, inclusive of any special colour. The LEDPOST is an attractive LED bollard providing safety in pedestrian areas. With its elegant design, the LEDPOST bollard is dedicated to lighting open areas. Thanks to innovative

BEKA Schréder has provided the LED lighting solution for Metical Square.

technology, the LEDPOST combines the highest precision and efficiency in a very compact bollard.

Roads The roads are illuminated with the ZIYA streetlight, mounted on GPR poles. Compact yet powerful, light yet robust, affordable yet highly efficient, the ZIYA range provides the fastest return on invest ment in road and area lighting. The ZIYA range comprises of the ZIYA-1 and ZIYA-2 with alumin ium housing, and the ZIYA-E with calcium-filled Polypropylene housing. The range incorporates a universal side-entry mounting for 42mm diam eter spigots. Precise on-site setting is facilitated through an incorporated inclination system. Built to withstand high ambient temperatures and van dalism (IK 10) and with a high Ingress Protection level (IP 65), the ZIYA range provides a sustainable performance over time. Restrooms The ROUGHGUARD LED has been installed in the restroom area. This vandal-proof LED luminaire has been designed to be used in industrial corrosive and harsh environments, providing light exactly where it is needed. It is available in two sizes for applications flexibility and an optional integrated movement and daylight sensor for further energy savings. BEKA Schréder locally develops and manufac tures sustainable LED lighting products, designed and suitable for local conditions. The company is proud to be associated with J SLIVA Architects & Engineers and OGA in providing a holistic LED lighting solution for this project.

za.schreder.com

The Metical Monument is illuminated by the LEDSTREAM LED floodlight.

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