The evolution of LiFi
Li-Fi, which stands for Light Fidelity, is a wireless communication technology that uses light signals instead of radio waves to transmit data. It offers higher data transfer rates and greater security than traditional Wi-Fi.
Introduced as a term in 2011 by Harald Haas, at the time, the Li-Fi market was still in its early stages, with several companies and research institutes beginning to actively explore and develop the technology. Over time, research institutes and universities across Europe conducted studies and experiments to investigate the potential applications and benefits of LiFi technology in order to improve the performance, reliability and scalability of solutions.
It is important to note that the LiFi market is influenced by various factors, including technological advances, regulatory frameworks, infrastructure requirements and market demand. Some industry studies, such as the one by Yole Développement and Piseo, estimate the value of the Li-Fi market to be around $1.1 billion in 2023. Certainly, the market is experiencing significant growth beginning in 2021, with CAGR of 53% between 2021 and 2023. Industry, healthcare, defence, hospitality, retail, education, construction will account for 80% of the projected sales volume in 2023. Technology and volume integration will enable strong cost reductions, which will fuel market growth of $15 billion by 2030, with a compound annual growth rate (CAGR) of 51% from 2022 to 2030 (Source: https://www.precedenceresearch.com/li-fi-market).
Obstacles and growth prospects
Yole and Piseo consider LiFi to be a technology with high potential, but there are two factors that could impede its rapid development in the short and medium term: standardization, on which there have been recent important developments, and the development of products and services incorporating Li-Fi technology.
In this context, as To Be, we have succeeded in becoming a point of reference for the global market, so much so that we represented Italy at the 'LiFi Conference' in Eindhoven, an important meeting between research and industry, which was useful for delving into the LiFi market trends, the dynamics of this ecosystem, the possible applications of this technology in environments ranging from cultural heritage to healthcare, from schools to retail, from the role of research to the role that start-ups are having in reaching the market.
To Be's case studies
Thanks to synergies with institutions and the corporate world, To Be has been the first to realise numerous projects in sectors such as Cultural Heritage, Health and Education. In fact, we have several very significant references to our credit in these areas, which exploit LiFi technology. Among the most important are the installations in the Archaeological Park of Pompeii, Castel del Monte, and the National Archaeological Museum of Altamura, which have enriched the experience of visitors by allowing them to receive information on the various works on display directly on their smartphones and to be guided through the exhibition thanks to LiFi's accurate geolocation system. Again, To Be brought LiFi to several Italian schools to enable students to connect to the network via light in a safe, fast and sustainable manner, while at the ASL Napoli 2 Nord, the Pozzuoli, Ischia and Procida sites are the first Italian hospitals where LiFi has enabled them to improve the services available to patients, visitors, doctors and hospital staff.
Would you like to participate in the first Italian conference dedicated to LiFi scheduled for 14 September 2023 in Rome? Click here to register.
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LiFi and the IEEE 802.11bb standard: the future of connectivity
LiFi is a technology that uses light to transmit data. It’s an emerging technology, but it has the potential to revolutionize the way we connect to the Internet.
These days (July 2023) the Institute of Electrical and Electronics Engineers (IEEE) approved the new IEEE 802.11bb standard for LiFi technology, which offers a number of advantages over traditional wireless networking technologies such as Wi-Fi and Bluetooth.
To Be Srl and the LiFi Revolution
To Be Srl is a leading LiFi company in Italy and Europe. The company was founded in 2016 by a team of young entrepreneurs and researchers, pursuing a dream and a great vision: a world where every light can transmit and receive data, this is the LiFi Revolution. To Be Srl can now boast 8 years of experience in the sector, several important references and successes achieved, some of which have become world firsts.
The advantages of LiFi
LiFi offers a number of advantages over traditional wireless networking technologies:
- Speed: LiFi can achieve very high data rates, as the light spectrum is much wider than the radio spectrum.
- Security: LiFi is much harder to intercept than Wi-Fi.
- Efficiency: LiFi uses modern low-power LED light to transmit data.
Possible LiFi’s applications
Connected light systems, visible and non-visible, are composed of different LiFi modules and devices.
To Be Srl offre una varietà di soluzioni LiFi per diversi scenari applicativi:
To Be Srl offers a variety of LiFi solutions for different application scenarios:
- Geolocation and Indoor Navigation: through the LiFi Geolocation solution it is possible to provide a navigation service in very large indoor environments (hospitals, museums, airports, shopping centres) that allows to:
- enable proximity information, such as promotional offers or content of cultural interest;
- enable real navigation, as if it were a google maps for interiors, with a very accurate localisation accuracy and the possibility of calculating a route to get, for example, from the entrance of a hospital to the clinic a user is looking for;
- improve the use of any large environment, both public and private, even for disadvantaged categories; it is in fact possible, thanks to this solution, to guide a blind person through voice commands or indicate the best route to follow to a person with disabilities, avoiding the risk of running into architectural barriers.
- Corporate and institutional Internet: through the LiFi Streaming solution, it’s possible to connect one or more PCs or tablets to the network wirelessly, without the risk of interference or hacker attacks (offices, meeting rooms, schools, healthcare and defence environments)
- Point-to-point communications: the LiFi Point-to-Point solution allows two points (buildings, objects, machinery) to be connected up to 300 metres apart, with the possibility of creating more extensive multipoint networks (Industry 4.0, museums, defence).
These solutions are applicable and respond effectively to different needs and issues such as real-time data transmission, intelligent infrastructure, security and surveillance, entertainment and proximity marketing.
Some LiFi Projects
- Pompeii Archaeological Park: To Be Srl installed a LiFi system in the Archaeological Park of Pompeii, which allows visitors to have access to multimedia proximity content depending on their location. To date, the LiFi Geolocation solution has also been implemented at Castel del Monte, the MArTA Archaeological Museum in Taranto, the National Archaeological Museum in Altamura, the Cambellotti Museum in Latina, the Barracco Museum in Rome, and the Musei del Sac - Puglia.
- ASL NA 2 NORD: To Be Srl has implemented a LiFi system in some hospitals of the ASL NA 2 NORD, which enables fast and sustainable web surfing while accessing health services in a safe and comfortable way.
- Istituto Superiore "Costanza Varano" in Camerino: To Be Srl implemented some LiFi Streaming stations in the school's computer and chemistry laboratories in order to provide fast, secure and RF-free connectivity. To date, the LiFi Streaming solution has been implemented in several schools nationwide: Rome, Camerino, Macerata, Pollenza and San Severino Marche.
The future of LiFi
LiFi is no longer the future, but the present. Its revolutionary potential will change the way we can connect to the Internet. The IEEE 802.11bb standard is an important step in the development of LiFi technology, it will make this technology more accessible and more popular. LiFi represents one of the paradigms of 6G and is in fact a forerunner of it: the sixth generation of connectivity will, in fact, embrace the Thz frequencies of light by developing new networks capable of supporting the ever-increasing demand for data traffic.
LiFi at the Cyber Security Summit 2023
Important success in terms of audience and content for the third edition of the Innovation Cybersecurity Summit 2023 organised by ANGI - National Association of Young Innovators, a reference point for innovation and digital in Italy - in the splendid setting of Palazzo Wedekind.
La cybersecurity è un processo e in quanto tale si compone di vari elementi, politiche, procedure nonché misure tecnologiche. Non solo gli addetti ai lavori di cybersecurity devono occuparsene, ma ogni persona deve essere coinvolta nel rafforzamento della sicurezza. Come spesso viene ricordato, le organizzazioni si dividono in due: chi è stato oggetto di un attacco e chi lo sarà; per cui valutare i rischi significa tener conto sia delle vulnerabilità sia della capacità di reazione agli incidenti
Security of information, networks and information systems were central themes during the event organised by ANGI - Associazione Nazionale Giovani Innovatori at the Wedekind Palace. An event that highlighted the role of innovation and cybersecurity as key elements in supporting and protecting businesses, infrastructures and critical state sites under the name of digital. An initiative that was acclaimed by the institutions and held in collaboration with the European Parliament Offices in Italy and under the patronage of the European Commission Representation in Italy, AIPSA, Cyber 4.0 Cyber Security Competer Center, Cyber Area and with the strategic partnership of Women4Cyber Italia, with whom an important memorandum of understanding on cybersecurity issues was also announced.
Also present among the speakers was our CEO Francesco Paolo Russo, Director General of ANGI, who emphasised the potential of LiFi solutions for #CyberSecurity to protect our country's critical infrastructures linked to National Security, from Defence to Healthcare and, more generally, to the protection of data and communications in both the public and corporate spheres.
LiFi technology is in fact very secure from an IT point of view as the signal is not as diffuse as WiFi, does not cross physical barriers (walls, walls) and remains confined within the environment. To provide this type of connectivity, we, like To Be, have developed two types of solutions: LiFi Streaming and LiFi Point To Point.
LiFi Streaming solutions use LEDs that emit non-visible light, within the infrared spectrum. Using light for communication in critical contexts also has other advantages: these connections do not generate interference with equipment or places where radio frequencies can cause conflicts.
These solutions, together with LiFi Point To Point, exploit another advantage of LiFi, namely the ability to create connectivity infrastructures that are not only very secure and high-performance, but also very quick to set up, considerably reducing the amount of cabling required.
Ci sono settori come la Difesa dove il cyberspazio insieme al dominio spaziale sono ormai considerati non solo una priorità ma un vero e proprio cambio di paradigma culturale. La sfida, come ha ricordato anche il direttore dell’Agenzia per la Cybersicurezza Nazionale Bruno Frattasi, è di accrescere e sviluppare una cultura della sicurezza e della protezione dai rischi cyber. Un pericolo che riguarda ambiti nevralgici come la difesa e la sicurezza, ma anche la sanità, i trasporti e il mondo finanziario. Tutti ambiti in cui noi stiamo portando le nostre soluzioni tecnologiche LiFi.
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Li-Fi vs Wi-Fi technology
Li-Fi vs Wi-Fi technology
Wi-Fi networks in recent times are proving inadequate to support the growing demand for connectivity, which is now essential for an increasingly connected world and, even more so, for all emerging industries: from Metaverse to Augmented & VR technologies.
Current technologies may not be able to cope with the needs of consumers, which is why we are currently looking with increasing interest at new technologies that allow data to be transmitted wirelessly by exploiting other, much more high-performance and free portions of the spectrum. This is also why 6G, i.e. sixth generation connectivity, will fully embrace the Thz frequencies of light, from the visible to the non-visible.
LiFi technology is already an excellent alternative, capable of overcoming many of the limitations of Wi-Fi and guaranteeing an information transmission speed in the order of Gbps. This innovative wireless connection system is also more secure, reliable and has higher bandwidth.
Wi-Fi is also known for one of its most important disadvantages, namely the generation of radio-frequency electromagnetic fields: these are responsible for the limitation or total exclusion of the use of this system in certain environments, such as military or medical.
LiFi, on the other hand, by exploiting light and not radio waves, can also be used in sensitive environments such as those mentioned above.
Advantages of LiFi versus Wi-Fi
Firstly, compared to Wi-Fi, LiFi has greater network security: every single piece of information or data transmitted is protected from third-party users. These are, in fact, transmitted through a specific optical range that does not cross physical barriers.
To hack a network (sniffing), therefore, one would have to be in the same room where the data transmission takes place. This solution effectively eliminates the possibility of interception or sniffing by hackers, which is possible with the use of radio waves.
A second advantage of this innovative system lies in its non use of radio frequency signals and the absence of interference. This is an extremely important benefit as it allows the system to be used even inside closed, sensitive environments where other equipment is present that would normally interfere.
In terms of data transmission speed, LiFi is also significantly better than Wi-Fi, as it travels in the Gbps range. The speed remains unchanged despite various downloads or uploads and the number of connected devices. Furthermore, the lightwave spectrum of LiFi is much larger and more advantageous, about 10,000 times wider than the common radio frequency spectrum.
This innovative data transmission system realises the principles of ecological, digital and network infrastructure transition of the PNRR in a single solution. In order to work, it requires no special repeaters or antennas, but a non-visible LiFi LED light body to be connected to the network cable and a dongle for each device to be connected.
Through this system, not only is a green connectivity guaranteed, but also the energy consumption related to the use of the latest generation of LED lamps is reduced.
Would you like more information or a quote? Write to us here.
What is LiFi and how it works
What is LiFi
LiFi, also known as Light Fidelity, is a highly innovative technology that uses light waves from LED light to transmit information and data.
Its features are unique: it is a wireless connection that does not send out radio waves and guarantees the highest levels of security.
LiFi technology is applied with many advantages in various sectors from cultural heritage to healthcare, from retail to IT security and defence environments.
Specifically, LiFi has greater efficiency, higher bandwidth, higher security and better performance than Wi-Fi.
How LiFi works
LiFi is a truly innovative technology: it uses light modulation of individual LEDs to transmit data and information at high speed by exploiting both the visible (Discover LiFi G solutions) and non-visible spectrum (Discover LiFi S and LiFi P solutions).
LiFi technology can have various declinations, in our case we talk about:
- LiFi Geolocation to indicate the possibility to geolocate users by exploiting luminaires in visible light and an app that can be downloaded from smartphones;
- LiFi Streaming to indicate a pure connectivity solution to the network, consisting of an infrared (invisible) LED LiFi transmitter and USB sticks capable of receiving and transmitting the signal, connecting the devices to the Internet;
- LiFi Point-to-Point: a connection bridge via infrared (instead of radio frequency) LED light, usable both indoors and outdoors, which can allow two or more points (buildings, machinery, industrial or military vehicles) to be connected to each other up to 1Gbps wirelessly.
The comparison with Wi-Fi can therefore only be made with LiFi Streaming solutions.
The LiFi transmitter can be attached to the ceiling next to the usual lighting system or come out integrated with it. In the case of a new lighting system, you can design all the lighting in your buildings according to the latest standards in terms of energy efficiency (which can produce a reduction in consumption of up to 80%) and lighting quality. Today, it is possible to surf LiFi rather than Wi-Fi from PCs and tablets via a dongle, i.e. a receiver, very similar in appearance to a USB stick, capable of establishing a dialogue with the infrared LED light transmitter attached to the ceiling (or track).
Would you like more information or a quote? Write to us here.
IT technologies between physical and digital: LiFi and Surroundings
To support the necessary level of computerisation, digitisation and automation required by modern working environments, it’s indispensable to have smart technologies ready to support current and future operational challenges, such as the new application frontier that allows data to be transmitted through light: LiFi.
Panduit, Lainate (MI) – Competing with industry experts such as Panduit, a leader in infrastructure products and services for data networks and power applications, and Signify, a world leader in lighting for which we are a Certified System Integrator (Euronext: LIGHT), is always a source of opportunity and growth for a young innovative SME like ours. The participation of our CEO Francesco Paolo Russo, as Special Guest, allowed us to analyse from many points of view that phenomenon of ‘dematerialisation’ that in the last thirty years has led to a new dialogue between physical and digital in many workplaces, and above all to recount the many innovative aspects of LiFi technology.
Together with Gian Piero De Martino, Electrical and Network Infrastructure Business Unit Manager Panduit and Daniele Tordin, Technical System Engineer Panduit, we saw how, behind every delicate product and service, there is always an infrastructure with all its elements, often hidden, but not unimportant. The physical network makes possible a variety of applications that have become indispensable for everyone, such as communications, security, information and data transmission, environmental management, audio-video and lighting.
And how does LiFi fit into this picture? It’s simple: the evolution of transmission methods and media has not stopped at the sending of electrical signals through copper cables alone, but has seen the use of radio/wireless transmissions, data transfer through fibre optics through to the modulation of LED light to send and receive information in data format.
LiFi (Light Fidelity), in fact, is a cutting-edge technology that enables the transmission of data and information through visible and invisible frequencies. It is able to offer numerous advantages, including greater bandwidth and a high data transmission speed that today reaches 1Gb/s, and will reach, in 2025 according to industry studies, 1 Tbit/s. In the laboratory, these speeds are already being achieved today, which commercially will only be achieved with the advent of 6G, of which LiFi is a precursor as the sixth generation of connectivity will fully embrace the Thz frequencies of light.
This technology, using light and not emitting radio frequencies, can be used in sensitive and interference-hostile environments such as hospitals, aircraft and military bases. Furthermore, the use of a solution that uses light to provide connectivity, which by its very nature is confined within the limits of space and cannot overcome physical barriers, provides greater protection from potential hacker attacks from outside, making the transmission of information and data fast and secure. Another important feature of LiFi is its accuracy in terms of geolocalisation. It is possible to detect the position of a device, and therefore also of a user, with a margin of error of a few centimetres. This is a benchmark for the sector, especially considering that the most widely used technology for localisation to date is Bluetooth, which has error margins in the order of a metre.
Starting from this potential of LiFi, in To Be we have been carrying out intensive work on evangelising the technology for some years now in areas ranging from Healthcare to Education, from Cultural Heritage to Defence, and we have come to develop three application solutions: LiFi Geolocation, an indoor geolocation system that uses LED light modulation to define a user’s position extremely accurately, managing to enable, among other things, indoor navigation experiences; LiFi Streaming, a system for a two-way wireless connection to the PC and/or tablet network that is fast, secure and sustainable; LiFi Point To Point, a point-to-point communication system capable of providing wireless connectivity even over long distances, which can be used both indoors and outdoors.
To date, we have several very significant LiFi projects to our credit in different areas. Among the most important are the installations inside the Archaeological Park of Pompeii, Castel del Monte, the MArTA Museum in Taranto, the National Archaeological Museum in Altamura and the entire circuit of the Sac Museums, which have enriched visitors’ experience by allowing them to receive information on the various works on display directly on their smartphones through the LiFi Art App and to be guided through the exhibition thanks to LiFi’s accurate geolocation system.
In several Italian schools between Lazio and Marche, we brought LiFi to enable students to connect to the network via light in a secure, fast and sustainable manner, while at ASL Napoli 2 Nord, the hospitals of Pozzuoli, Ischia and Procida are the first Italian health facilities where LiFi has enabled improved services for patients, visitors, doctors and hospital staff.
Would you like to get in touch with us and find out more about our LiFi solutions? Write to us at info@tobe-srl.it and we will send you in-depth material.
Protect your network with Li-Fi!
Safe Browsing: One of the most important and discussed issues of recent years. A trend that over time will be increasingly significant.
Li-Fi and security. The most well-known hacker attacks include ransomware and password attacks. In the first case it is a malware stealing personal data and asking for a ransom to get the data back. This type of attack is the one that hit the Lazio Region in August 2021.
The second type of hacking mentioned, however, aims to subtract the credentials of access to our digital life. The two most frequently used password cracking techniques are: social engineering, using email or fishing messages convinces the user to communicate their password, and credential stuffing, you hack the database of a service containing a large number of user passwords and try them on other sites. In the latter case, famous is the episode that hit LinkedIn in 2012 when about 164 million credentials were stolen and were put on sale in 2016.
It’s interesting to notice how even Wi-Fi, the most widely used technology today, can be so vulnerable. How is that possible? Let’s look at the technique called DNS (Domain Name Server) hijacking, through which hackers enter a network without the owners realizing it. It is a technique that allows users to be redirected to websites specifically designed to infect computers or induce victims to reveal sensitive data.
In particular, the router hijack variant can put our Wi-Fi network at risk: very few users, in fact, have the foresight to change the credentials of their routers and the standard ones, usually, are predefined and identical for all devices sold. It’s easy for hackers to retrieve credentials, access your router, and redirect our searches to unsafe websites.
Why is Li-Fi a safe technology?
LiFi is, to date, one of the safest technologies for data transmission because instead of using radio frequencies as a connecting vehicle, it uses infrared and visible light spectrum. All waves that are not able to overcome physical barriers: the network becomes invisible for those outside the light beam of LED lamps.
By installing LiFi solutions, a hacker to connect to the network should be physically present within the room. One can also create localized network offices that allow access only to some departments and not to others. All that said, it makes clear that Li-Fi can be really a great ally to surf the net safely.
What is Li-Fi?: https://tobe-srl.it/en/technology/
Digital threats: what is the LiFi response?: https://tobe-srl.it/en/lifi-security-from-hacker-attacks/
LiFi: Safety and sustainability in schools: https://tobe-srl.it/en/lifi-safety-and-sustainability-in-schools/
Do you know other technologies as safe as Li-Fi?
Conosci altre tecnologie sicure quanto il Li-Fi?
Magic Spectrum Demo Day: To Be and the LiFi Revolution!
On July 14th, in Milan, CDP Venture Capital and Digital Magics announced the 8 finalists, among 175 startups that applied, that were selected for the first edition of Magic Spectrum, an acceleration program. This program is meant to support startups that work in the 5G and Internet of Things markets. To Be is among the 8 finalists: along with Auting, Cloudvision, Evja, G-move, Logbot, MyMine, e Waterstream, our startup received an initial monetary support of 75.000 euros.
At the Demo Day event, our Chief Financial Officer Danilo Fattorini had the task to present our vision, current and future projects to investors, mentors and companies, both from Italian and international backgrounds.
Our participation to the event, which was launched by Cdp Venture Capital and Digital Magics, allowed us to obtain an initial monetary support of 75.000 euros from extremely important players in the innovation system. In the last few months, we have been focusing on collecting capital from investors wanting to support us.
“5G and IoT are two markets that will be increasingly prominent in the future, thus they will have a strong influence on everyone’s life. With our program, that greatly aligns with our industrial plan, we aim at attracting the best companies working in this field. Thanks to the precious contribute of CDP Venture Capital and our other partners, we also want to help these companies grow and build meaningful networks. The first 8 startups selected proved us that we are going in the right direction and showed us the significance of the ideas and solutions offered by European and Italian talents.”
Ludovico Facchini, Digital Magics’ Partner & Magic Spectrum Program Director
Presenting our vision and LiFi solutions, that aim at accelerating the LiFi Revolution, at the Demo Day event represented the first step of an important journey that will keep us very busy and that we are ready to embark on at the speed of light.
In this process, the founders of To Be were assisted by Federico Bellan LLM, of counsel at Akran Intellectual Property.
To learn more about our fundraising activity, contact us at the email info@tobe-srl.it.
To learn more about LiFi, read here.
Li-Fi at the SMAU fair in Berlin
To Be played an important role at the SMAU event in Berlin, which took place April 27-29. This event further contributed to strengthening the ties between Italian startups and the German world of innovation.
More than often, the words “startup” and “Italy” do not go hand in hand. However, the SMAU event has started to change things. 40 startups were selected to participate in “SMAU | Italy RestartsUp in Berlin”, among which To Be. This event showed us that innovation can take place in our territory.
By competing in the Energy and Environment, category, To Be had the opportunity to meet German investors and talk about current and future projects.
Among the many unforgettable moments, we will remember the debate with other startups that took place at the Italian Embassy of Berlin, in front of important investors and government agencies. During this panel, we were honored to be mentioned by Ernesto Ciorra, Chief Officer of Enel Group.
The German innovation system proved to be one of the most advanced worldwide, especially in matching innovative startups with investors. The German system is a role model to follow.
We sincerely thank SMAU and ICE, which is an agency that works on promoting and internationalizing Italian companies, for following us in this experience that allowed To Be to build meaningful networks and create new opportunities.
All of this was possible thanks to the project " To Be International” which was supported by the Lazio Region and Lazio Innova, and was co-funded by the European Union with the Contest POR/FESR 2014-2020 and a contribution of 48.519 euros.
We are looking forward to attending the next SMAU event that will take place on October 12 and 13 2022 in Milan.
Join the LiFi revolution! Contact Us
To learn more about Li-Fi, read here.
The LiFi Revolution Landed at the SMAU Paris Fair!
To Be was one of the 24 innovative startups attending the SMAU fair in Paris, which took place from March 23rd to the 25th
SMAU fairs play a fundamental role when it comes to bringing together important actors of the European innovation system. Every year SMAU organizes events in Italy and many other countries that involve several companies from every sector at an international level.
SMAU and ICE, which is an agency that works on promoting and internationalizing Italian companies, allowed us to expand our network internationally and to dive into new great opportunities, such as potential collaborations with important bodies.
We were met by the vibrant and dynamic French innovation system. Accelerators, incubators, innovation centers, investors, and several institutions all work together to advance the growth and development of the entrepreneurial sector. Public and private efforts contributed to making France a fundamental player in the innovation system.
Our participation at the SMAU Paris Fair 2022 allowed us to introduce our solutions through speed pitching. We focused on LiFi Geolocation, which improves the geolocation experience through proximity content, and on LiFi Streaming, which creates a bidirectional connection thanks to light modulation.
We were honored to be welcomed to the Italian Embassy. We had the opportunity to take the first steps towards the development of solid Italian-French relations, that would result in a dynamic exchange of ideas and resources.
We thank everyone that contributed to making this an incredible experience, Lazio Innova and Regione Lazio for supporting us with the “To Be International” project, which was co-funded by the European Union and that provided monetary support, which amounts to 48.519 euros.
We look forward to attending the SMAU Berlin Fair on April 27, 28 and 29.
Join the LiFi revolution! Contact us.
To learn more about LiFi, read more here.
