Big punch in a small packageFlashlight technology has seen huge advances in the last ten years. With the development of the simple LED, lighting systems the size of rice grains are producing huge ...

Engineers in Switzerland have built light-emitting diodes so small that hundreds could line up across the width of a single human cell, shrinking a core component of modern electronics to a scale that ...

EternaLight flashlights use a solid-state light-emitting diode (LED) source, which is more durable and has a longer life than a standard flashlight bulb. The eternaLight Model 3 Ergo Marine uses four ...

A research group has discovered significant nonreciprocal optical absorption of LiNiPO4, referred to as the optical diode effect, in which divalent nickel (Ni2+) ions are responsible for magnetism, by ...

If you’re shopping for a flashlight, you may think looking at how many lumens it puts out is the best way to determine quality or usefulness. It’s an understandable assumption, but that number in ...

What Is A Light-Emitting Diode? A light-emitting diode (LED) is a semiconductor device that emits light when an electric current flows through it. LEDs function by converting electrical current into ...

Researchers say they have designed a laser diode that emits the shortest-wavelength ultraviolet light to-date, with potential applications in disinfection, dermatology, and DNA analyses. Nagoya ...

I have nine Garrity rechargeable flashlights. They plug into a wall socket to charge, and when power fails, the flashlight goes on, serving as an emergency lamp. What I love about this discontinued ...