When you flip a switch or power up your smartphone, the last thing on your mind is whether that light could be messing with ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. LED bulbs, by all indication, herald the future of home lighting ...

To be more energy efficient, many people have replaced their incandescent lights with light-emitting diode (LED) bulbs. However, those currently on the market emit a lot of blue light, which has been ...

We're becoming increasingly aware of the negative impacts of prolonged exposure to blue light – the kind emitted by LED bulbs and the screens of our devices. One quick fix is to use blue light ...

Three researchers helped revolutionize lighting with vastly better energy efficiency and brightness. The light-emitting diodes also are used in data storage, TVs and smartphones. Stephen Shankland ...

LED streetlights are spreading like wildfire in cities as municipal governments take advantage of the cost savings offered by these energy efficient bulbs. This conversion from conventional street ...

Do LED lights cause cancer? Can they really reduce crime? One kid is so concerned about LED streetlights that he called Mayor Rahm Emanuel. Chicago sixth-grader JJ Nnawuchi loves looking at the stars, ...

Researchers have designed and tested ‘human-centric’ LEDs that emit different wavelengths of blue light depending on whether it’s daytime or nighttime, reducing the disruptive effect artificial light ...

In many cities today, streets are lit by white lights, screens show vivid colors, and buildings glow with precise patterns of illumination, all depending on a small but important invention from the ...