Claims to have developed practical use for much vaunted tech.
While visible light data transmission has been available for some time, there hasn't yet been a widespread real world use for it.
Japanese firm Outstanding Technology is aiming to change that with the Commulight system, which uses visible light communications to send info to smartphones and tablets via a receiver.
The device can be plugged in using a USB or (as many gadgets do not have full-size sockets) there's another version that plugs into the 3.5mm jack.
Both operate in the same way, however; collecting information from an overhead data-transmitting LED.
Outstanding Technology thinks Commulight is ideal for guiding users around galleries and museums, offering new information at each exhibit.
Another large market is retail, where coupons and discounts can be transmitted at point-of-sale.
Watch the video below for more.