A blast from the Elektor archives: this 1998 battery tester uses a simple LED display to reveal a battery’s true condition under load — even below 1 V.

We can choose to lead, or be led to ruin,” declared UN Secretary-General António Guterres, addressing delegates at COP30 in the rainforest city of Belém, Brazil. As the world pushes to triple ...

Dermatologists explain the science behind wildly popular treatments like red light therapy, which is now available at home—for a steep price. Full-face LED masks like this one can cost up to several ...

Star-favored, board-certified aesthetics physician Dr. Glenicia Nosworthy explains how to choose the right high-tech tool for every skin concern. By Natalie Alcala, Danielle Directo-Meston, Erin ...

Chris Wedel is a fan of all things tech and gadgets. Living in rural Kansas with his wife and two young boys makes finding ways to stay online tricky — not to mention making my homestead smarter.

Chris Wedel is a fan of all things tech and gadgets. Living in rural Kansas with his wife and two young boys makes finding ways to stay online tricky — not to mention making my homestead smarter.

A series where we find out which products the professionals (who really know what they’re talking about) actually use and really stand behind. Read more here. Maybe you’ve seen an influencer gliding ...

The amount of ERCOT‘s large load interconnection requests ballooned to more than 230 gigawatts this year, a massive increase from the 63 gigawatts reported in December 2024. The agency, which operates ...

Many people believe that the LED was discovered by US researchers working in the 1960s. In fact, Henry Round at Marconi Labs noted the emission of light from a semiconductor diode 100 years ago and, ...

If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. While there have been amazing strides in the plastic ...

“Whilst clinic LED treatments are both effective and popular, at-home devices are a much more cost-effective and convenient way of using LED,” says Laurence Newman, founder and CEO of Currentbody.

Buying a monitor or TV has become a daunting task these days. When manufacturers aren’t branding their products with acronyms like QLED and OLED, they use confusing terms like mini-LED instead.