From 3D movie screens to augmented-reality devices, many modern technologies rely on our ability to manipulate light. Doing ...

The LED, or light-emitting diode, itself is very unlikely to fail, and if it does, it goes out slowly over the years. Instead, it's the other electrical bits in LED bulbs that fail and cut off the ...

We went inside the ISLE Fair in Shenzhen, China — the world's largest LED display exhibition — and what we found honestly ...

LED therapy masks use specific light wavelengths for at-home skincare treatments. Red light is used to improve fine lines, while blue light targets acne-causing bacteria. Users should follow safety ...

This article is a part of CNN Underscored’s Guide to Age-Defying Beauty, a weeklong focus on the essential products, tips and tricks to enhance your glow at any age. We’ll be featuring editor-tested ...

QLED and regular LED TVs are some of the most common TV technologies. While they are very similar in many ways, their main differences means their overall performance tends to be quite different.

LED TVs are about to get a lot better. As demonstrated by Hisense and to some extent Samsung at CES 2025, a new backlight technology called RGB LED is poised to improve the quality and efficiency of ...

Two of the best TV technologies are mini-LED and QLED. While neither offer OLED's incredible image quality, they're close and most often brighter. They're also typically cheaper than OLED and ...

Cars' headlights have come a long way since charming yet potentially dangerous acetylene headlamps debuted in vintage automobiles. The later halogen headlights are still around, but the world has ...