Li-Fi technology, pioneered by a research team lead by Harald Haas, uses LED-based room lighting instead of radio waves to transmit data. The technology is being developed as a potential alternative to Wi-Fi and, because it uses the visible light spectrum to transmit data, researchers believe this can offer transfer speeds far greater than those attained by existing contemporary Wi-Fi technology (600Mbps). Researchers at Oxford University have reached a new milestone in networking by using light fidelity (Li-Fi) to achieve bi-directional speeds of up to 224 gigabits per second (Gbps). Li-Fi will not be commercially available for a while but, for illustration purposes, using a 224Gbps speed would technically allow for 18 movies of 1.5GB each to be downloaded in 1 second.

Li-Fi encodes data onto the light coming from LEDs by modulating their output. The rapid flickering is unnoticeable to the human eye but a receiver on a desktop computer or mobile device can read the signal and even send one back to a transceiver on the ceiling of a room, providing two-way communication. The technology is not without its limitations. Light does not pass through opaque objects; Li-Fi can only work within line of sight. However, this property means the emerging technology has the potential to provide low-cost wireless internet more securely in localised areas, given that light is unable to pass through walls.In research published in Optics Express, Harald Haas (chair of mobile communications at the University of Edinburgh and a member of the Ultra-Parallel Visible Light Communications Project) and his team showed that replacing the LEDs with off-the-shelf laser diodes vastly improved the situation.

Lasers, with their high energy and optical efficiency, can be modulated at 10 times the rate of LEDs. And rather than using phosphors, laser lighting would create white light by mixing the output of several lasers operating at different wavelengths. That means each wavelength can be used as a separate data channel, the same sort of wavelength division multiplexing that lets optical telecommunications carry so much data. “The problem is that LEDs, although they are more energy efficient than incandescent light, they still can be improved in terms of their light output, we strongly believe the next wave of energy efficient lighting will be based on laser diodes.”Haas has previously claimed that in the future every LED light bulb could potentially be used as an ultra-fast alternative to Wi-Fi. “We have the infrastructure there,” Haas said in a TED Talk demonstrating Li-Fi. “We can use them for communications. “All we need to do is fit a small microchip to every potential illumination device and this would then combine two basic functionalities: illumination and wireless data transmission.”This technology has the potential to revolutionize data transfer and change the way we connect in our everyday lives.



There have been significant new developments that have taken place here at Power Logic over the past few months. The New Developments section aims to keep you up to date with the latest product developments and what to look out for with product modifications and upgrades.

The Apex: The Tower with more Power


The Apex: Suitable for all waiting area environments

The Apex offers multifunctional charging and power capabilities suitable for any waiting area environment. The soft Neoprene material on each surface ensures that all charging devices rest comfortably without sliding off. The power outlets are available in black, grey or white and are stocked for RSA, Australian, UK, USA, Brazilian and Schuko outlets.

One-Touch: The New Single Escutcheon Top Piece


The New Escutcheon

The new escutcheon will soon be available for both the One Touch and the Rotadock units. The One Touch is now available with the new single escutcheon piece. The re-designed and engineered extrusion enables better colour matching for a more unified aesthetic appearance as well as improving the manufacturing of the separate parts.

The new escutcheon will be available for both the One Touch and the Rotadock units.

The Fresh Face of the Data Interface

Data Interface 1

Data Interface with keystone connectors

The latest version of the Data Interface offers an improved user-product experience with its easy clip on mechanism; which allows users to attach and detach the interface making it easier to change connectors. The interface is also shuttered to provide resistance to the ingress of dust.

The Data interface is compatible for any keystone connectors including CAT 5, CAT 5E, CAT 6, HDMI and many other couplers. The interface is available in black, grey and white and is compatible with all Power Logic products.

The Universal Smart Charger


Universally-Smart: The charger that makes a difference

Power Logic is proud to announce the release of the new universal smart-charger which boasts wider and superior charging capabilities. Suitable for almost all intelligent mobile devices, with twin USB 3.0 ports for increased usability and is also backwards compatible with USB 2.0.

The compact size of the unit makes it ideal for any environment domestic or office and is ideally suitable for travelling purposes. The charger will be available in a range of colours to be announced soon.


The New South 3 Pin (SANS 164-2: 3 Pin) Socket

Power Logic has unveiled our new in-house designed and manufactured South African 3 pin socket (SANS 164-2: 3 Pin) which has been approved by SABS and is available through-out all our product ranges. This new “slim styled” South African 3 pin socket and plug is replacing the previous [large] 16A 3 pin style (SANS 164-1: 16A), which will be reportedly phased out by 2025. The new standard based on the IEC worldwide plug system (IEC 60906:1986) is seen as the safest system in the world.

The new 3 pin socket is used in South Africa because it accommodates cell phone chargers and two pin Euro plugs fitted to small power devices such as hair dryers. The main feature of its design is that the socket is shuttered and has a 12mm pocket which makes it impossible to touch a live pin during plug insertion.

SA Plug

Current South African 3 Pin-Plug

The SANS 164-2 standard also caters for the 16A 2 pin (SANS 164-2: 2 Pin) system that is extensively used in adaptors and is intended to accommodate Class II appliances and power tools. These Class II items are manufactured from an insulating material such as polycarbonate plastic and do not require earthing. The standard therefore allows the connection of an unearthed plug into an earthed socket but not the other way round. This caters for the Euro type 2 pin plug rated at 2,5A which is commonly found on some small appliances.