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Signify is working with more than 30 customers to pilot LiFi-enabled luminaires that combine energy efficient LED lighting with two-way, 30Mbps wireless communication using light waves rather than radio signals.

Each luminaire has a built-in modem that modulates the light at speeds imperceptible to the human eye. The light is detected by a LiFi USB access key plugged into a laptop or tablet, which returns data to the luminaire through an infrared link.

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LiFi is attracting interest as an alternative or complementary technology to WiFi for network and internet access where radio frequencies may interfere with equipment, such as in hospitals; where WiFi signals can’t reach (e.g. underground); or where security is a priority, for example in the back office of a financial institution or government service – LiFi adds an extra layer of security as light cannot pass through solid walls and line-of-sight with the luminaire is needed.

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