The lights are now dimmed throughout the many halls of CES, and none are more perturbed by darkness than the folks at Oledcomm. Illumination is the company’s specialty, after all; or, more specifically, LiFi technology, which facilitates high-speed data transmission via pulsating light sources.

A method for sending data using light was shown at CES by a company called Oledcomm, a system it called LiFi. Demonstrated on the show floor using an Android smartphone with its front camera replaced with a light sensor, the system allows for devices to communicate using pulses of light, with the rapidity of flashes making the light source look as if it is a static light.