INNOVATION Li-Fi to replace Wi-Fi in China

Four computers can be connected to internet through one-
watt LED bulb using light as a carrier instead of traditional
radio frequencies, as in Wi-Fi, said Chi Nan, an
information technology professor with Shanghai's Fudan
University.
Chinese scientists have successfully developed a new
cheaper way of getting connected to internet by using
signals sent through light bulbs instead of radio
frequencies as in Wi-Fi, a move expected to radically
change process of online connectivity.