Li-Fi looks to be yet another disruptive technology, this time in communication, which has remained with the same wireless technology since the year 2000.
Li-Fi uses visible light from LEDs, to transmit data faster than Wi-Fi and without the latter's negative health effects which are becoming more and more visible as our use of Wi-Fi and other mobile communication technologies increases.
Li-Fi - using visible light to transmit data ... meanwhile the telecoms are pushing to roll out 5G phone technology, which is using microwaves in the millimeter band (5 to 100 GHz) and which has not been tested for safety in any meaningful way...
http://www.wakingtimes.com/2016/09/12/5g-telecomm-radiation-perfect-tool-mass-modify-human-brain-waves/