Bennett McIntosh for the Office of the Dean for Research at Princeton University analyzes the future of light technologies in this feature article. One hundred years ago, Italian chemist Giacomo Ciamician predicted a future society that would run on sunlight.

New LED lights that are being installed in milk display cases across the country do more than just reduce energy bills -- they also help milk taste better, Virginia Tech researchers have found.

Don Barnetson, CTO of Lunera Labs outlines five major lighting control and sensor technologies currently on the market, and compares how each measures up in real-life lighting situations.

A hybrid form of perovskite - the same type of material which has recently been found to make highly efficient solar cells that could one day replace silicon - has been used to make low-cost, easily manufactured LEDs, potentially opening up a wide range of commercial applications in future, such as flexible colour displays.