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Does Li-Fi affect the quality of LED flood lights?
Feb 01, 2018

Researchers at the University of Edinburgh in the United Kingdom conducted a one-year study to determine if Li-Fi could adversely affect the energy efficiency of LEDs. The study was funded by the British Engineering and Natural Sciences Research Council (EPSRC).


The researchers explained the project in a paper on "Studies of the Effects of Visible Light Communication on Illumination and Display Quality." They found that LEDs can meet the needs of wireless communications without compromising the light or environmental benefits they provide.


Research shows that while transmitting digital data while the LED flood lights, the LEDs neither discolor nor darken the light, nor does the LED consume more energy. Maintaining the quality of lighting is an important consideration as it can have a significant impact on the physical and mental health of people in the home and workplace.

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Wasiu Popoola, Ph.D., principal investigator at the University of Edinburgh's Li-Fi Research Center and the Institute of Digital Communications, said these are major concerns for the industry, hindering consumers' use of Li-Fi with home-use LEDs and hindering Li-Fi The widespread adoption.


With the help of two different data transmission techniques, researchers studied LEDs that produce warm white light and cool white light. The first is on-off keying, during which the LED's operating mode is the same as the Morse code and can be quickly switched on and off for the human eye. Second, in the meantime, the light intensity is changed to achieve the same goal.