The Complete Guide to LiFi Technology: How It Works and Its Benefits

Imagine having a wireless internet connection that not only surpasses the speed of your current WiFi but also provides enhanced security against hackers, with the added capability of potentially functioning underwater. Sounds like science fiction, right? But it’s not. This is the promise of LiFi, a new technology that uses invisible light to transmit data.
  1. Home
  2. »
  3. National
  4. »
  5. All (National)
  6. »
  7. The Complete Guide to LiFi Technology: How It Works and Its Benefits

Imagine having a wireless internet connection that not only surpasses the speed of your current WiFi but also provides enhanced security against hackers, with the added capability of potentially functioning underwater. Sounds like science fiction, right? But it’s not. This is the promise of LiFi, a new technology that uses invisible light to transmit data.

What is LiFi?

LiFi, short for Light Fidelity, is a wireless communication technology that uses light to transmit data. LiFi uses ultraviolet light, or infrared light to transmit data between devices. This enables LiFi to overcome common limitations such as buffering, congestion, and vulnerable signals.

How does LiFi work?

Here’s how LiFi works:

  • A light source, such as an LED bulb, is used to transmit data.
  • The light source is modulated to create a digital signal that can be decoded by a receiver.
  • The receiver is equipped with a photodetector that can detect the modulated light signal.
  • The photodetector converts the light signal into an electrical signal, which is then decoded into digital data.
  • The data is then transmitted to a device, such as a computer or a tablet, where it can be used for various purposes, such as internet browsing, file transfer, or audio and video streaming.

How is LiFiMAX different from traditional LiFi technology?

While traditional LiFi uses visible light, LiFiMAX takes LiFi technology a step further by using invisible infrared light. This allows LiFiMAX devices to work even when the lights are turned off, making them ideal for use in areas where light pollution is a concern or where complete darkness is required, such as hospitals, aircraft cabins, etc.

How LiFiMAX’s LiFi works?

It relies on LEDs (those energy-efficient light bulbs you see everywhere) that flash incredibly fast – think 30 million times a second to send information. This high-speed light flashing allows devices to connect to the internet.

Why LiFi is getting attention?

Cybersecurity: One of the biggest advantages of LiFi is its potential for better security. Since light can’t pass through walls, the data transmitted via LiFi doesn’t leave the room it’s in. This means it’s much harder for someone outside to intercept your data, making LiFi a great option for sensitive environments like defense facilities.

Use in Restricted Environments: In places where radio frequencies might cause issues – like hospitals, airplanes, or even schools – LiFi offers a safe alternative. Since it doesn’t use radio waves, it’s not subject to the same restrictions and health concerns.

High-Speed and Bi-Directional Communication: The technology has evolved to allow very high-speed, two-way communication. This makes it suitable for high-data tasks, like quickly downloading information.

Future Possibilities: While currently more focused on business-to-business (B2B) applications, LiFi is expected to become more mainstream as smartphones and other consumer devices begin to incorporate the necessary technology. In a few years, LiFi could become a common feature, allowing for high-speed, secure internet access and data transfer in a range of settings.

What are the benefits of LiFi?

LiFi has several advantages over WiFi:

  • Transmission speeds that are literally off the charts:

LiFi technology offers theoretical throughput of a minimum of 10Mb/s and a maximum of 9.6Gb/s. Imagine sharing large files, conducting video conferences, and collaborating in real-time without any lag or buffering. That’s the power of LiFiMAX.

  • Say goodbye to data breaches and privacy concerns:

Like visible light, infrared light can’t penetrate walls. This creates a closed network where your sensitive data is protected from prying eyes, giving you peace of mind. This makes LiFi ideal for use in sensitive environments, such as law firms, financial institutions, insurances, hospitals, government offices, etc.

  • Enjoy uninterrupted connectivity for everyone:

Up to 16 users per Access Point can connect to the LiFiMAX network simultaneously, ensuring everyone has access to a fast and reliable internet connection. Just plug in the USB-C dongle, and you’re ready to collaborate.

  • Efficiency That’s Eco-Conscious and Smart:

LiFi not only has the potential to offer faster data speeds than WiFi but also promises enhanced security, reliability, and energy efficiency. This could be advantageous for both users and the environment, as it may lead to reduced energy consumption.

Experience unparalleled security, fast speeds, interference-free operation, and protect yourself from harmful radiowaves.Learn More

What are the challenges of LiFi?

LiFi is a relatively new technology, so there are a few challenges that need to be addressed before it can be widely adopted:

  • Cost: LiFi technology is currently more expensive than WiFi.
  • Line of Sight Requirement: This means that LiFi requires a direct line of sight between the transmitter and receiver, which can limit its practicality in scenarios where obstacles might obstruct the light path.
  • Lack of Awareness: Limited awareness and understanding of Light Fidelity (LiFi) solutions among consumers, businesses, and policymakers can hinder the growth of the LiFi market.

Applications of LiFi Technology: Going Beyond Connectivity

LiFi in Business and Industries

LiFi is not just a buzzword; it’s making tangible impacts in various industries. Oledcomm, has been at the forefront of LiFi adoption. The French Ministry of Armed Forces (Ministère des Armées) recognized the limitations of traditional WiFi technology in secure military environments. Concerns included susceptibility to interference, limited range, and potential for data breaches. The Ministry partnered with Oledcomm to explore the potential of LiFi technology for secure communication within military facilities and operations.

LiFi in Telecommunications

As data security and speed become paramount in the telecommunications sector, LiFi offers a secure and stable solution. This rapid growth indicates the increasing demand for LiFi technology.

LiFi vs. WiFi: How do they differ?

While LiFi and WiFi share the common goal of providing wireless connectivity, they differ significantly in their operational principles and characteristics:

The Verdict: LiFi Takes the Lead in the Area of Security

LiFi is not intended to replace WiFi everywhere. Instead, it serves as an alternative solution in situations where highest security is demanded and radio waves or cable connections are unreliable or not feasible.

However, LiFi can replace WiFi in specific scenarios:

High levels of electromagnetic interference (EMI) areas:

  • Hospitals, where medical equipment may interfere with WiFi signals
  • Airports, where various radio signals from aircraft, radar, and ground equipment can cause interference
  • Industrial facilities, like manufacturing plants or power generation stations, where heavy machinery and electromagnetic fields can disrupt WiFi connectivity

Remote and off-grid locations:

  • Airplanes, where establishing a reliable WiFi connection can be challenging
  • Subway stations or underground facilities where WiFi signals struggle to penetrate
  • Remote villages or rural areas with limited internet infrastructure

High-security areas:

  • Central banks and financial institutions
  • Government institutions like the government house or embassies
  • Military bases and classified research facilities

Confined spaces:

  • Inside vehicles, such as cars, buses, or trains, where space is limited and WiFi signals may be weak
  • Large public venues like stadiums, concert halls, or shopping malls, where a high number of people can cause interference using WiFi

Radio wave sensitive areas:

  • LiFi can be beneficial in areas where radio waves are not allowed or are heavily regulated, such as in hospitals, power plants, or military facilities. LiFi can provide a secure and reliable communication method in these areas without interfering with other wireless signals.

Radio wave sensitive people:

  • Electromagnetic Hypersensitivity (EHS): Some people may experience symptoms like headaches, fatigue, or skin issues that they attribute to radio waves emitted by devices using WiFi.
  • LiFi uses light for data transmission instead of radio waves. This means someone sensitive to radio waves may find a LiFi-based internet connection doesn’t trigger the same adverse reactions when accessing the internet.

What is the future of LiFi?

Despite the challenges, LiFi has the potential to revolutionize the way we connect wirelessly. As the technology matures and costs come down, LiFi is expected to become more widely adopted in a variety of applications, including:

  • Indoor wireless connectivity: LiFi could be used to provide high-speed wireless connectivity indoors.
  • Industrial automation: LiFi could be used to connect machines in factories and other industrial settings.
  • Vehicle-to-vehicle communication: LiFi could be used for communication between cars, trucks, and other vehicles.
  • Underwater communication: LiFi could be used for underwater sensor networks and communication between underwater vehicles.

With its many advantages, LiFi is destined to become the next generation of wireless technology. So, keep an eye on LiFi. It could be the future of the internet.


In conclusion, LiFi is a groundbreaking technology that has the potential to revolutionize the way we communicate wirelessly. With its ability to transmit data through light, LiFi offers a secure, reliable, and energy-efficient alternative to traditional wireless communication methods. While still in its early stages, LiFi is already being used in a variety of settings, from secure offices and schools to industry and transportation, defense industries, and even in homes. As the technology continues to advance, it’s exciting to think about the possibilities that LiFi may bring to our daily lives. Whether it’s providing secure communication in high-security environments or enabling fast and reliable internet access in areas with limited connectivity, LiFi is certainly a technology to keep an eye on in the future.


Q: What is LiFi?

A: LiFi is a wireless technology that uses invisible light to transmit data. It’s similar to WiFi, but it uses light instead of radio waves. This makes LiFi more secure and less susceptible to interference.

Q: How does LiFi work?

  • A LiFi-enabled device generates data to be transmitted.
  • The device converts the data into electrical signals.
  • The electrical signals are used to modulate the intensity of light emitted from an LED.
  • The modulated light is detected by a LiFi-enabled receiver.
  • The receiver decodes the modulated light into data.

Q: Can LiFi pass through walls?

A: No, LiFi signals cannot penetrate walls like WiFi signals can. This is because LiFi relies on light, which is blocked by solid objects.

Q: How is LiFi bidirectional?

A: LiFi can be bidirectional, meaning that data can be transmitted in both directions. This is done by using two sets of LEDs and photodiodes, one for transmitting and one for receiving (half duplex).

Q: How to use LiFi

A: By integrating an Access Point, a LiFi receiver will detect the modulated light from the light source and decode it into data.

Q: How is LiFi different from WiFi?

A: LiFi and WiFi are both wireless technologies used to transmit data. However, they differ in several ways:

  • LiFi uses invisible light, while WiFi uses radio waves.
  • LiFi signals cannot penetrate walls, while WiFi signals can.
  • LiFi is not affected by interference from other electronic devices, while WiFi can be affected.

Q: Can LiFi replace WiFi?

A: LiFi does not intent to replace WiFi in the near future. LiFi is a complementary technology, especially in indoor environments where security, bandwidth, and interference are concerns.

Q: How to get LiFi

A: Oledcomm is seen as the market leader due to their 33 LiFi patents. You can get their LiFiMAX, LiFindustry, SOLERIS, SatelLife and Microchip products right here. Contact us via