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Data-Transmitting Lights Unveiled

Paul Rubens - June 20, 2019 - 12:15 PM
Data-Transmitting Lights Unveiled
Signify's Li-Fi light range can transmit data at speeds of up to 250 Mbps.

(CCM) — A range of lights that can transmit internet data around a room at speeds of up to 150 megabits per second (Mbps) has been announced by Signify, the company formerly known as Philips Lighting which produces Hue-branded smart bulbs.

The light range is called Truelifi, and the name derives from the light-based data transmission technology, called Li-Fi, that the range employs. It uses optical wireless transceiver technology which can also be retrofitted into existing Philips lighting.

As well as connecting computing devices such as laptops, Trulifi lights can also be used to connect to fixed points with data speeds of up to 250 Mbps, the company said.

Before connecting to Li-Fi, devices will need to be fitted with a USB Li-Fi receiver and transmitter. This may be inconvenient, but Li-Fi could be very attractive in places such as hospitals where there may be significant radio frequency interference, or where Wi-Fi may not be permitted for safety reasons.

Unlike radio-based Wi-Fi, however, Li-Fi cannot penetrate walls, and in fact can be blocked if the receiver is in shadow. But this could also be a security benefit, because it makes it easy to prevent a network spreading beyond areas where it is required.

Image: © Signify.

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