A look at 11 Swiss Army Knives with battery-powered features, from clever LED tools to rare discontinued models you might ...

How do they get away with this? Samsung's televisions use a series of Light Emitting Diodes (LEDs) — like the ones used in LED torches and alarm clocks — to "backlight" the LCD panel, and it's ...

This wall clock built by [Alf Müller] is lovely, using two NeoPixel rings to mark the time by casting light onto a 3D-printed ring. The blue shows the minutes, made more discrete by a grid inside ...

The best LED light bulbs are eco-friendly, long-lasting, and come in all kinds of color temperatures. Talk about a bright idea.

When [Rodrigo Feliciano] realized that the reason his seven-segment LED wall clock wasn’t working was because the original TG1508D5V5 controller was fried, he had a decision to make. He could… ...

Light-emitting diodes (LED) are more energy-efficient than compact fluorescent lights (CFLs), among many other advantages.

Using thin-film technology in nuclear clocks is commensurate with semiconductors and photonic integrated circuits, suggesting that future nuclear clocks could be more accessible and scalable.

The best low-light alarm clocks have screens or faces that can be adjusted or turned off completely so that you can sleep soundly.

Light therapy is being used to improve mental and physical health — and the best part is that you can purchase devices to be used at home and easily integrate them into your daily routine. From ...

Whether you're looking for the best LED light strips to illuminate and energize your home or car, here are the top options available.