Architect Kapil Surlakar is a visionary in the field of lighting design. With his company, Light@Work, Surlakar is revolutionizing the way we perceive and interact with light in our built environment. From architectural masterpieces to immersive experiential installations, Surlakar’s creations blend artistry with functionality, enhancing spaces and evoking emotions through light. Through this exclusive interview and stunning visuals, Smart Home World, delves into Kapil Surlakar‘s creative process, inspirations, and the philosophy behind his awe-inspiring creations of Light@Work. 

Light@Work is one of the most reputed companies in the industry. Can you take our readers through your journey so far?

As an architect, my fascination with lighting design and its impact on architectural spaces drove me to seek deeper knowledge in this field. Recognizing the lack of expertise in lighting within our profession and the absence of a shared vocabulary to articulate our design visions, I pursued a Master’s degree in Architectural Lighting Design at Hochschule Wismar in Germany. This marked the beginning of my journey into lighting design.

In India, where awareness about the profession of lighting design was scarce, I saw an opportunity to fill this gap. In 2005, I founded Light@Work in Mumbai, one of the pioneering lighting design practices in the country. Over the years, our team has grown to include architects with specialized training in lighting design, as well as architectural assistants. Together, we are committed to promoting the importance of our profession through a combination of design excellence and ethical principles.

It is essential to distinguish between qualified lighting designers and those who merely claim to be professionals in this field. The presence of unqualified individuals and businesses offering lighting design services undermines the quality of work within the Indian design community. Therefore, both clients and design professionals must exercise caution and discernment when selecting lighting design expertise.

In an era where ethical practices may seem undervalued, we remain steadfast in our commitment to upholding the highest standards of integrity and professionalism. We believe that prioritizing ethics is not just a moral imperative but also a prerequisite for delivering exceptional design solutions that truly enhance the built environment.

Can you mention some of the landmark projects you worked on, which have been a turning point in your career in terms of experimenting with new lighting techniques/designs or introducing innovative concepts?

I started my journey as a One-man office wherein I was introduced to the under-construction Akshardham Temple Complex in New Delhi. It was a 92 Acre Site. After a few failed attempts with international Lighting design offices, I was accorded the opportunity to make a presentation and was able to garner their trust. I was entrusted with the task of designing the Lighting for the Temple Complex Masterplan as well as Detailing the Important structures for Façade and Interior Lighting. Technical and product support was provided by M/s Light Craft Singapore and M/s Shimera Project Lighting, Mumbai. Manpower support was provided by the BAPS Trust, which was the client.  Those were exciting times. I was armed with New Knowledge and a hope and desire to make a mark. A project of such importance and magnitude, with high visibility is a dream start to one’s career. It was divine intervention, that also guided me and gave me the courage to embark on and successfully deliver the project that was applauded Internationally and was Awarded the IESNA Paul Waterbury Award of Excellence in St. Missouri, USA. This was a project resolved with conventional Light sources before the advent of the LED. It was a more creative exercise that applied both Architectural and Lighting design Principles effectively to create the desired installation. We are currently involved with Many projects of that Scale, which include Residential Layouts, Heritage Sites, Commercial Buildings, Infrastructure projects, etc. Some solutions are enabled more effectively by the technology, and we are in the process of Installing Media Facades and Content-based solutions on Infrastructure projects. Today Technology is at the forefront and new conventions are being set. However, our strong belief is that the Design process and input that effectively use the various technologies appropriately, with experiences and knowledge gained over the years, holds the design in good stead instead of blindly adopting technology without relevance and feasibility. We see technology as an enabler but still believe it’s the subject knowledge of the designer that dictates the appropriate use of the same.

As a member of IALD, you have presented many case papers at international summits. What are your views on the importance of Lighting Design in a project?

I am not a member of the IALD. I was a member of PLDA which is now defunct.

Light is an entity, a force, that is directly connected to Human well-being. The very fact that we wake up in the morning is that sunrise suppresses the melatonin secretion into the bloodstream, which leads to awakening. There are other aspects of how light affects the physical health, mental and psychological health of humans and other living organisms. Lighting can be effectively used to emotionally manipulate human response by altering visually induced perceptions. These are the aspects that are very important in facilities that work 24/7 in environments that are completely cut off from natural daylight. It is also a very important tool in Retail and sales.

One must evaluate the project based on what one wants to address and achieve out of the situation to benefit the occupants. Today, the talk largely revolves around the efficacy of the Light sources and the basic CCT, and CRI discussions. The most misused word today is “LUX”. Unhindered Proliferation of Technology is further confusing the consumers and making them lose focus on their intended tasks. Technology is great, only if used appropriately, with knowledge. 

Lighting is of utmost importance to any project. Unfortunately, a large emphasis today is only on the visual rendition of Architecture, which gets noticed and recognised, similar to the loud `Social Media Influencer, whereas the more scientific aspects of lighting, the non-visual effects, more relevant to Human Health and well-being are not yet being widely recognised and accepted. The amount of light pollution in the urban pockets of India is also responsible for lifestyle changes, leading to disturbed sleep cycles, resulting in serious Health hazards.

A good Lighting design is sometimes such that you enjoy the space without any discomfort and yet do not see anything spectacular. 

What is the biggest innovation in the lighting sector? How has it revolutionized the entire industry?

The biggest Innovation that changed the norm was the LED. It brought about a paradigm shift in the way lighting design could be perceived. The LED made the light source compact and easy to conceal. It brought in flexibility and the possibility of various forms. Changed the way it could be addressed and communicated with. It was now intelligent. What was missing in the early generation LED and is being now addressed effectively by most is the quality of light that the LED emits. The spectral quality of light which is the most critical aspect defines the degree of performance of the light source for varying applications. 

As a Lighting Designer, which lighting control brands do you prefer? 

There is a plethora of Lighting Control Systems available. New systems and signal protocols emerge regularly. Systems vary from hard-wired, and hybrid to wireless systems. The developers or manufacturers are indigenous or multinational with varying degrees of capabilities. Every project has a specific requirement, and the control system is ideally selected as per the role it must perform. Some systems offer highly specialised user interfaces, which command the client’s attention and therefore end up being the deciding factor. However, the decision for a control system is evaluated on the scale of the project, the system capabilities, ease of use, sturdiness, User interfaces for aesthetics, the dimming and control protocols and signals used, ability and ease of scaling up or down, as well as a strong deciding factor of the cost of the system.

What are your views on the Smart lighting industry? According to you, in which sector (hospitality, commercial, residential), is traditional lighting getting rapidly replaced by smart lighting? 

“Smart Lighting” is a marketing term used to loosely describe the various technologies that have made lighting addressable and responsive within defined parameters. The knowledge of the available technologies and their “smart” application in the design of the lighting system can result in a smart system. Smart lighting technologies allow you to program light sources w.r.t intensity and colour, or to render the installation into static or dynamic modes. It can also be used to get feedback from the system to monitor power consumption and failures, which allows to maintain an effective and efficient system. Applications could be across all sectors; however, the related costs have a better return on larger systems.

How do you foresee the Smart Lighting Industry 5 years down the line in India?

The Potential is huge. However, the knowledge of these systems and their working has to reach the end users, through the right channels, including the consultants and designers who guide them. I experience resistance to the dissemination of knowledge, and this creates impediments to a knowledgeable acceptance and application of these technologies with the confidence they demand. I hope technology and its benefits are conveyed appropriately, unlike some brands that use film stars and celebrities to promote technology, using glamour and with no relation to technology or knowledge.

Human Centric Lighting (HCL) is a futuristic trend in the lighting industry with health and mental wellness being the top benefits. What are your views on the same? 

Again, HCL is the approach based on the understanding of the non-visual effect of light on humans and on other living organisms. Any educated Lighting Designer would study this as a part of the curriculum. Application is Key. Every design, be it architectural, interior design, or Landscape, in any scale, is designed to meet the needs of humans and end users, Lighting Design should be no different. HCL should be the Fundamental basis of any design and not a Trend. A deeper knowledge and understanding can help to deliver specialized solutions specific to Health and Wellbeing.

As the smart lighting market is fragmented into various segments – such as type, applications, end-users, and distribution channel, how does Light@Work provide the best lighting solutions that suit consumer needs?

Light@Work is a Design Consulting Company, with educated and qualified Lighting Designers. We ideate, conceptualise, and resolve the Lighting design for any project collaboratively, aligning with the goals of the project, client, and other Lead Consultant/s to achieve the end goal. Light@Work defines the Lighting strategy and the appropriate technology, detailed specifications, and resources. All this is done within the financial framework set by the client. Where the financial boundaries and technological aspirations do not align, we ensure that the same is informed to the client in a transparent manner, enabling him to decide to increase the budgets or curtail the aspirations. All in all, communication with well-defined solutions, options and cost implications is Key to getting a client decision and progress towards the desired outcome.

Tell us about the user experience with IoT and AI automation systems as the future of Smart Lighting.

IoT or Internet of Things refers to a system of communication between various devices in the system with the help of sensors and actuators which helps in addressing and monitoring any system remotely or through a control user interface, wired or unwired, through cloud computing. These are largely system management tools that allow the monitoring and efficient use of resources deployed. This however does not help to achieve the right ambient lighting unless the core lighting basics are adhered to. This, therefore, can truly be termed as a smart Lighting system design, and not smart Lighting.

Your views on LED revolution and lighting control. What are the latest trends in Lighting Systems and lighting controls?

The LED is ever-evolving, and we are now able to discern and achieve LED sources with high spectral performances. The continued development in the LED source is encouraging for a good visual quality of light. As for the Lighting Control systems, the new trends are moving towards scalability and wireless communication protocols, largely applicable in large facilities or urban-scale lighting projects. 

How important is collaboration with a system integrator while doing a lighting project?

A system integrator essentially is a technician who has the knowledge of the various components of a designed system, not essentially from a single manufacturer. It is ideally his duty to test and guide on the compatibility of the various components of any system or provide suggestions for suitable alternatives for compatibility. It is with this feedback that the designer can streamline the system design. The Integrator then has to ensure that the system is made operational as desired and responds to the signals in a way it has been designed to function. A knowledgeable system Integrator is a Key collaborator in a lighting project that relies on any form of automation.

What is your future vision for your Company?

The future for Light@Work is to continue doing creative and meaningful work that is in line with our company motto, “Ethical Design Excellence”. We are developing partnerships and exploring design solutions with the new technologies and hope to expand our geographical reach beyond what it currently is. We want to grow without compromising on the Ethical practices for business.

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Praveen Thampi, Creative Director, The Ministry of Light highlights the need for True Sky Circadian Lighting System and future trends and innovations in the lighting industry.

What are the advantages of using smart lighting in homes?

One of the most common forms of smart lighting for homes is dimming. This allows users to adjust the brightness of the lighting to suit different occasions or set the required mood. These scenes can be anything the user wants them to be, from a specific kind of scenario during any festivity or celebration to creating a right ambience for a party. With a smart lighting system, a user can easily program and recall different scenes depending on the activity that will take place in a certain area.

Home environments with smart lighting have been shown to boost residents’ well-being. Having abundant natural light is ideal for a comfortable home. However, getting adequate sunlight isn’t always practically achievable in major metros cluttered with buildings. That’s why it’s helpful to have an artificial lighting system in home that provide illumination to Replicate the Natural Sunlight. To put it another way, this aids in maintaining our internal clocks in sync with the sunlight and helps properly regulate various Human hormonal secretions.

How does smart lighting play an important role in our workplaces? 

In today’s world, people spend a lot of time under white light during the day and at night. Inside office buildings, so commercial spaces must have smart lighting. People are not exposed to natural light in an office setting. They are always exposed to a fixed colour temperature light, but the wavelength and colour temperature of natural sunlight changes every minute of the day, which the human brain keeps track of. As a result, our bodies are unable to keep track of these variations in light and are unable to respond appropriately.

This is especially important for employees working the night shift. Because we are Diurnal beings and life on earth is designed so that we wake up when the sun is up and go to sleep when the sun is down. Night shift employees face a problem that we call de-synchronisation of the biological clock/circadian rhythm.

Long-term effects of sitting under a fixed colour temperature include lifestyle disorders such as high blood pressure, diabetes, lower concentration, etc. Smart lighting in an office helps facilitate natural sunlight in the office space. It ensures that the circadian cycle works correctly and that the people working in that space have no adverse effects. 

For example, in Northern Europe & Scandinavian countries, many people suffer from SADS – Seasonally affective disorders. Circadian lighting in such areas helps trick the brain and fast-tracks it by twelve hours and makes the brain feel like it is daytime. This helps them work as efficiently as possible without worrying about any disorders. 

How does smart lighting affect the aesthetics of a space?

When it comes to smart lighting and aesthetics, we do not compromise in any way. One of the practices prevalent in the market is where some integrators/designers go for some gimmicks in terms of smart lighting. When it comes to Circadian/Tuneable white Lighting, the type of luminaries we use in terms of ‘Look & Feel‘ do not change, but we only change the type of LEDs and Control system used inside them. 

Rather than maintaining a constant colour temperature, we use two sets of LEDs to adjust the colour temperature and Intensity based on colour temperatures emitted by the natural sunlight which is in sync with the Human circadian rhythm and user preferences. In terms of aesthetics, a tunable white lighting system will enhance the room better, as some colours are more enhanced at certain colour temperatures than others. Similarly, specific colours are disguised by using different colour temperatures. So overall, the space transforms drastically as the day goes by. Certain colours not visible in the morning are better enhanced in the evening because of the ever-changing colour temperature. 

What is the True Sky Circadian Lighting System?

The True Sky Circadian Lighting System is where you have a suspended, sleek Dual optics Luminaire, where the upward component throws light into the ceiling and is tunable between 2000K and 8000K. The light coming from the downward component is varying only between 3500K-5500K, which simulates the natural daylight. This two-way lighting system is a perfect replication of the natural sky & daylight. 

The colour temperature of the upward component of the suspended luminaire changes from blue to orange as the day progresses. This approach is based on how the sky changes colour while the sunlight we perceive remains constant between 3500K-5000K. We recently implemented this system at one of the Google Campuses in Bengaluru.

How vital is working with a system integrator on a lighting project?

At The Ministry of Light, we design the entire lighting system including the Lighting Management system completely In-house. The reason why we do this is that we are a bunch of tech-savvy people. Apart from lighting, we do a lot of lighting automation, and I myself am a technology consultant for a couple of large lighting automation companies. 

I try to stay on the cutting edge of technology and use that in my projects, so I don’t usually need a system integrator. A system integrator might come into the picture if the client tries to integrate the lighting management system with other automation systems. Still, system integrators don’t come into play much from a smart lighting installation perspective. 

System integrators do quite a good job of integrating a home automation system. But when it comes to commercial spaces, the role of an integrator only comes into play if there is a sophisticated conferencing system or an AV system that needs to be integrated with the lighting management system. 

In my experience, there are some lighting designers who only focus on the Architectural/Interior design aspect of lighting, so in such cases, the system integrator plays a larger role in plugging the gap between the lighting designer and the electrical consultant. 

What are the primary factors that you consider while ideating a design pattern? Or what all needs to be kept in mind while ideating a design theme or pattern for a particular area? 

We first begin by understanding the functionality of the space and the client’s requirements based on which we make a reference to what kind of project we are working on. So we prepare a questionnaire and propose a design basis report to the client. This report is based on the latest technologies and standards available in the market along with a budgetary cost. This slab-based report is then used to make recommendations to the client to fit their requirements. At this stage, we also make a note of what will be the usage of the space as well as at what time the systems will be used the most. So here we gather a lot of pertinent information that becomes the basis for all the design and technology decisions. 

Next, we decide on the standards and technologies that will be implemented in the project. This includes whether we are going for motorised blinds, a full-fledged Lighting Management System or Human-Centric lighting/Circadian Lighting, a standard On/Off-sensor-based system, or a Standalone DALI Smart Lighting Management System with HCL or BMS integration. So we need to consider almost 15 different parameters here, and these parameters evolve and change on every project. 

Next, we consider the architect’s design and understand the look and feel of the space. Here, we suggest to our clients how to modify or tweak the system to fit with the design principles. By this phase, the overall look and feel of the project and the detailed design charts are now complete and ready for the client’s approval. 

Finally, we process the BOQ with specifications and prepare the tender. Upon the client’s approval, we proceed with bringing in the suppliers and contractors on board and as part of this process, we prepare a “Techno-Commercial Comparative”, based on which the client places purchase orders and On-boards the Suppliers/Contractors. 

How do you provide the after-sales service for Lighting Management Systems? 

The lighting management systems available today are mostly cloud-based. These systems are quite flexible, and almost all of the after-sales services can be done over the internet. Once a project is done, we give the client a “Lighting Control System Logic Document” that shows them how to use the system in each room and its different functionalities and scenes. It helps the user understand the whole system and navigate through it.

If the user cannot solve a certain problem and needs any re-programming, the lighting management system supplier who installed the system can do the re-programming remotely through the Cloud or send a local representative to the site. 

What is the biggest innovation in the lighting sector?

It was the advent of LEDs that changed the lighting industry. Before that, there were only the basic Edison Bulb and halogen bulbs, which had been around for over 100 years, with few advancements like fluorescent lamps, high intensity, discharge lamps, metal halides, electro-magnetic lamps etc. Post-2005, a lot of advances have been made in the lighting sector with LEDs taking over the entire lighting industry. Though the principles of lighting controls have remained almost the same since their inception, they have now become smarter, more flexible and versatile and can do a lot more than just controlling lights. 

They are able to process a lot of data and provide users with more accurate information. These controllers are much more capable than their predecessors in handling inputs from multiple sensors, processing outputs to multiple Luminaires & feed that data very efficiently to the Building Management system simultaneously. This in conjunction with IoT systems can be used to fine-tune HAVC Systems and several other services in a large commercial project, reaching their optimal levels of performance. 

Smart Lighting protocols have evolved to make things easier, such as the Dali 2.0. So in terms of lighting itself, there have been a lot of changes and innovations, but lighting controls and smart lighting have evolved over a period of time rather than having drastically changed or innovated. There have been many innovative platforms that have been developed, which were revolutionary, but unfortunately, none became popular due to various reasons.

How do you foresee the future of the smart lighting industry?

New technologies are coming in daily, such as the Wireless Dali system, which is set to launch in less than six months which will be a game changer. In the next couple of years, there will be a major transition to wireless technology. 

Standardization in terms of Protocols in the Industry in terms of Smart home products with Matter and Commercial segment products with Dali-2 Standards, will be a game changer in the industry. 

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From halogen bulbs to Compact Fluorescent Lamps (CFLs) to Light Emitting Diodes (LEDs), to the latest being the Intelligent lighting technology that enables its users to control lighting through connected devices such as smartphones or remote controls — the lighting industry has come a long way with numerous transformations and technical up-gradations over the years. 

Now, with evolving technology and the changing trends in the lighting domain, the natural progression for the professionals and lighting industry at large is seen shifting towards energy-efficient and wellness options imbued with hi-tech features. Whether commercial, residential, hospitality, or health care segments there is a growing demand for Human Centric Lighting.

Human Centric Lighting (HCL) is a futuristic trend in the lighting industry with health and mental wellness being the top benefits. Human Centric Lighting is also known as Circadian Rhythm Lighting, as it regulates a high level of energy throughout the day followed by a good night’s sleep, which ultimately leads to enhanced productivity, health and wellbeing. This plays a very important role in an individual’s life – where all these factors contribute to overall healthy wellbeing and productivity at the workplace. 

The latest range available in the market from various national and international brands are designed to establish a perfect synchronization between mind, body and light to craft productive workplaces. These light fixtures operate parallelly with the body’s internal biological clock, called the circadian rhythm. 

How does HCL Affect Human Health? 

So, what do we know about how HCL affects human health? Studies have shown that poor lighting can have negative health effects — especially on our circadian rhythm. Also known as our sleep/wake cycle, circadian rhythm is a 24-hour internal clock that “is running in the background of your brain and cycles between sleepiness and alertness at regular intervals,” according to the National Sleep Foundation.

Circadian rhythm responds to lightness and darkness. Too much or too little exposure to certain types of light can then affect:

• Behavior
• How well we sleep at night
• Overall personal health

Expert’s View on HCL

Smart Home World spoke to the experts from the industry to know their insights:  

Mr. Sachin Motwani, Founder Osum Smart Solution

“In recent years, there has been an emerging need to develop applications that are trying to meet people’s emotional needs through the control of colour temperature, illuminance levels, and light direction. HCL is the process by which the correct control of the lighting can improve the emotional wellbeing, comfort, health, and productivity of people in the environment. We have used HCL in our corporate office in Mumbai. We have adopted a very holistic approach that includes all aspects of how lighting affects occupant wellbeing, productivity and comfort in the built environment before installing it; and our employees are enjoying the benefits.” 

Mr. Rajesh Uttamchandani, Director, Syska Group 

“The growing significance of smart building projects in India is driving the industry growth. The market statistics will be supported by the increasing focus on revamping with newer technologies for commercial and residential spaces. The software which supports HCL will be new cyberpunk in the future and the hardware segment will witness a steady growth rate owing to the demand for low energy consuming and long-lasting LED fixtures, accelerating the market growth. Increased attention on contrive advanced lighting technologies in commercial and industrial settings will propel the demand for HCL in the industrial segment. The presence of several leading market players coupled with the increasing adoption of these lighting systems in elderly care and various institutions will augment the industry trends. The industry trends will be boosted by the presence of numerous major market players as well as the increasing use of these lighting systems in elderly care and other organisations.” 

Jubin Thomas, Territory Sales Manager of Hospitality Segment- India & Subcontinent region at Lutron Electronics 

 “I think the HCL market is huge and will continue to grow due to people’s pursuit for a better quality of life. HCL has so many benefits and it’s already now a key consideration of any architectural and design plan. HCL can be applied in all built environments but now it’s more common to see its adoption in commercial spaces such as offices and hotels due to larger economic returns. Even college campuses and hospitals where occupants’ health and well-being are top priority HCL are preferred. HCL can help create a more comfortable, welcoming, and engaging environment for people. It can enhance health, well-being and productivity. For property owners and corporates, HCL can help attract and retain tenants and employees. It can also support sustainability by reducing energy consumption and maximizing access to daylight and window views, which in turn helps to meet WELL and LEED standards.” 

Architect and Developer Ajay Nahar, MD Nahar Projects

“When it comes to the residential segment HCL is a perfect choice. We have integrated this concept into one of our esteemed project Nahar Excalibur. We have used the recent technology which allowed homeowners to control the intensity and colour temperature of their LEDs through an app on their phone. HCL solutions offer many advantages that go beyond simulated natural light, offering endless possibilities for customizations that fit each homeowner’s preferences. Especially in luxury apartments, curated content provides alternate or additional settings that illuminate specific activities and moods, enabling lighting ambience to fit any homeowner’s lifestyle. Regardless of an individual’s decorating style, HCL allows individuals to easily control the comfort, usability and desirability of their living spaces. HCL is tailored to each person and changes as the user’s needs and wants change. No matter which time of the day, users can adjust the light settings to suit their preferred brightness levels and colour temperatures. With HCL, the home environment is no longer a stagnant indoor space. Instead, it becomes a dynamic setting that brims with life. 

Scope of using HCL

HCL can be used in several segments like healthcare, workplaces, education, retail, industrial, and residential segments. 

Healthcare

Research has proved that there is evidence of improved recovery rates and enhanced medicated efficiency and also stimulation by light and colours despite outdoor conditions. Philips HealWell is a commercial solution for patient room lighting that is creating a more effective healing environment using the natural power of light by adjusting lighting automatically with a human circadian rhythm which helps hospital patients to sleep better and heal faster. There is, for example, LED ceiling module and LED cove lighting, which simulate daylight and help patients to recover faster by supporting their circadian rhythms.

Workplaces

Some of the health disorders are linked to abnormal amounts of blue-rich light during working hours of the day, taking into consideration 5 days working week, steps need to be taken to get natural light. By simulating natural light in workspaces, it is possible to improve concentration and energy, but it can also increase employee’s motivation and commitment and improve work performance, awareness, and satisfaction. Osum provides a wide range of customized solutions for commercial spaces. 

Education

Research has shown that ambient lighting can have a positive impact on children’ chronobiological system, moods, and academic performance. By adjusting lights, it is possible to increase concentration as well as decrease fatigue in classrooms. In the light study conducted by Transfer Center for Neuroscience and Learning in collaboration with Osram, students with the biologically optimized lighting had fewer errors in the concentration test. Contributing to the positive results was the fact that biologically optimized light provides stimulation to the body as if the person was outdoors. Therefore, this light can counteract social jetlag—tiredness in the mornings frequently observed in young people, notably.

Residential 

In the area of residential solutions, a potential cause of health disorders is mostly excessive exposure to blue light, especially during the night hours. Smart lights are trying to help people eliminate this kind of light by simulating natural light. 

HCL can also help with biorhythm balancing in night shift workers. Output and error rate of monotonous work can be improved. It can influence the performance of the workers by way of several mechanisms—visual performance, visual comfort, visual ambiance, interpersonal relationships, biological clock, stimulation, job satisfaction and problem-solving.

Indian Market  Overview 

HCL is in its nascent stage in India, the government’s ‘Make in India’ initiative has been instrumental in stimulating the smart HCL systems demand in India and is aimed at enhancing vision, well-being and performance by serving in-depth knowledge to evoke particular human biological responses.

“The human-centric lighting market is also fueled by advancements in materials, manufacturing processes, and technologies to improve product functionality and energy efficiency. The lighting fixtures made up of 100 per cent recycled materials, such as discarded plastic bottles and recycled cement and paper, are gaining more attention in the market. Governments across the globe are also focusing on initiating various lighting projects, which aid in the growth of lighting fixtures. High investments by industry players in launching new products coupled with commercial and healthcare sector initiatives toward the adoption of human-centric lighting systems will contribute to the market revenues.” says Ar. Ajay Nahar, MD Nahar Projects

Human centric lighting has been segmented on the basis of component, application and regional and country level. Based on the component, the HCL is classified into software, hardware, and services. On the basis of application, the HCL market has been segmented into commercials, office spaces, healthcare, residential, industrial, educational, and others. The prominent factors that have been impacting human centric lighting market growth are: People are becoming more health conscious; Development of smart lighting system and usage of LED lighting solutions.”says Mr. Rajesh Uttamchandani, Director, Syska Group 

Brand Offering

Lutron offers a whole range of light control solutions for commercial and residential applications. “Speaking of commercial use, we have standalone modules for small spaces. For existing spaces and buildings, we have Vive wireless lighting control system. For spaces requiring dynamic and quality light, we have the Athena system. For the entire building or even campus, we have  Quantum total light and energy management system. Regarding residential use, we have a HomeWorks system for luxury houses and villas which can control hundreds of lighting circuits and devices with customizable wall controls. For apartments or condominiums, we have RA2 Select smart lighting control system. Both systems offer a free Lutron app to allow control via mobile devices or even voice control via Apple Siri, Google Assistant or Amazon Alexa.” Jubin Thomas, Territory Sales Manager of Hospitality Segment- India & Subcontinent region at Lutron Electronics 

Similarly, Wipro Lighting offers a range of LED luminaire options with an added feature of human-centric lighting technology that works in a harmony with the earth’s natural lighting cycle and can be programmed to imitate the natural sunlight and can be delivered over three different technologies PoE, DALI, Bluetooth. 

Philips HUE supported by ZigBee or dimmable DALI (digital addressable lighting interface) version from Osram can be considered as a similar concept which has the ability to tune any lighting product based on intensity and colour combinations. Also, Indian companies like Luminous Power, Syska, Legrand, Dominto Dyna from Bajaj Electric, Osum provide affordable HCL solutions at a fraction of the overall cost without installation of separate ambient lights. Crompton offers the widest range of HCL solutions for all types of Office Light fixtures i.e., Linear 2*2, Downlights, Cove Lighting etc. 

The latest Crestron Home OS update 3.13 features a complete slate of new features, including the addition of Circadian Rhythm settings — the ability to “auto-tune” lights to mimic aspects of natural light throughout the course of the day. This update allows everyone who currently utilizes Crestron dimmers to adjust light intensity in this “bio-centric” manner immediately. As Crestron’s tunable LED light fixtures (and those manufactured by its partners) are released, every aspect (including color) of the Circadian Rhythm feature will be available in the new fixtures via this update.

Selection Parameters (box)

Before you decide to invest in this technology, lighting experts say to consider these points when it comes to installing or retrofitting lighting systems that are described as human-centric.

• Select a system that’s flexible. 

• Select a system with a wide range of capabilities.

• Make sure controls are easy to use.

Growth Drivers

Human Centric Lighting Market size exceeded USD 1 billion in 2020 and is expected to grow at around 25% CAGR between 2021 and 2027. Growing popularity of new lighting innovations and initiatives toward replacing conventional lights is likely to drive industry growth.

The emergence of advanced lighting technologies including LEDs, smart bulbs, controllers, and intelligent & tunable fixtures is promoting the implementation of smart & controllable light systems, enhancing the market share. Due to the addition of sensors and wireless controllers, light fixtures are becoming more intelligent by allowing users to control illumination through smartphones, controller devices, and computer panels. Growing construction activities will augment the market demand and Increasing adoption in the commercial segment is fueling the market

Commercial application held above 45% share in the human centric lighting market in 2020. Commercial applications including business enterprises, offices, banks, retail stores, malls, and restaurants will expand at a high CAGR through 2027 on account of the infrastructure transformation initiatives.

The deployment of human centric lighting in commercial settings aids in the improvement of the occupant’s mood, concentration, and provides natural light effects, boosting the industry statistics. Employers and retailers across the globe are focused on enhancing the work & store environments to promote human wellbeing and gain cost & productivity benefits, supporting the market demand for human centric lighting systems. 

Challenges Faced and Solution 

However, high installation and maintenance cost is a major restraint to the global market growth. In addition, the rising adoption of wireless technology for lighting systems is expected to create opportunities for the human centric lighting industry. Wireless technology enables easy access to the lighting system and also proves to be a cost-effective solution. Smart lighting platforms under wireless technology help maintain lighting temperature and luminance. Attributed to this, the demand for wireless technology in lighting systems is creating huge opportunities for the human centric lighting market. HCL requires thoughtful planning and execution as it’s a holistic solution. Lighting designers should be brought in at the beginning of the building process. The right types of lighting fixtures, lighting controls and automated shades should be specified with the provisions for all the wirings and power supply. 

Conclusion

HCL will assist businesses in reducing expenses and maximizing revenue thanks to the expanded innovative solutions that these technologies offer. Modern businesses are entering a new era of opportunity and growth and any business’s ultimate goal is to maximize income while lowering expenditures. Most industries benefit from HCL and this trend will continue in the following year.

This new concept of lighting installation may enhance the project capital investment by a fraction but definitely reduce the operational expenses with an increase in environmental impacts. HCL system will work well in the workplace relating to academics, research, or places where light is an important parameter to be taken into consideration. This new concept of lighting arrangements will slowly but surely find a space in reputed places to
every household in times to come.

Smart Home World issue for August 2022 is out now. Read Now

Also Read: In Conversation with Mr. Kirtee Siingh, Principal of Kirtee & Associates, Lighting Designer & Consultant

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Each morning, when the first rays of sunlight touch the planet, it affects all living organisms . The radiant energy being emitted from other sources like the light of star filled night sky or a candle flame or the torch on your mobile phone, whether artificial or natural, light is essential everywhere. Research has continuously shown how light has an impact on human health, sense of well-being and performance.

Natural light has an optimal impact on the human mind and body. Our biological clock works best when exposed to natural sunlight during the mornings. This light is a spectrum with a composition of blue light, whose intensity changes throughout the day. In the evening the blue proportion of light is minimized, during which our bodies begin to increase levels of melatonin and decrease the level of cortisol hormone. This oscillation of melatonin and cortisol hormones has affects our circadian rhythm(biological clock).

Due to our modern lives, our circadian rhythm is affected in many ways. We experience little to no change in the type of light we expose ourselves to, with 90% of our time spent living, working, and playing indoors, beneath uniform and consistent artificial light. Although artificial light illuminates a space, it can affect the human body giving rise to sleep problems, adding stress on immune systems, and decreasing overall productivity.

WHAT IS HUMAN CENTRIC LIGHTING?
While designing modern working and living spaces, lighting is considered as one of the principle design elements. The 21st century is an era of innovations and new challenges. Bringing about revolution in the work culture and creating the need for optimal building lighting, which considers its impact on individuals within the space.

An indispensable innovation is the Human Centric Lighting (HCL) system.
This lighting system does more than illuminating a given space. HCL ‘mimics’ the changes in natural light throughout the day for people staying indoors. By emulating the levels of sunlight throughout the day Human Centric Lighting solutions can support the human circadian rhythm, enhance concentration, prevent sleeping disorders and improve overall well-being.

Various scientific studies have showcased the effects of HCL on 95% of participants with regard to improved healing, productivity, and alertness.
Also known as circadian lighting, Human Centric Lighting (HCL) is designed to nourish the physiological and psychological effects of light on humans.

Human-centric lighting has a wide variety of applications like schools, health care buildings, offices, etc. The five parameters that shape the lighting system, are the spectrum, intensity, timing, duration and distribution. These parameters need to be tailored to the building’s needs while installing the HCL system.

While many are yet to get on board with HCL systems , brands like Wipro,Lumenia and Glamox are leading the industry with a range of human centric lighting products. These brands are trying a holistic approach to lighting concepts and they are able to lift the safety levels, ability to concentrate and over all well-being of individuals to a new level. With the adaption of technology for better living, in the avenue of lighting- Human Centric Lighting is the way of the future.

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