The CULD is designed as a simple LED indicator that will light up anywhere from 5V to 50V. It’s intended to be set-and-forget, requiring no fussing with different resistor values and no worries ...

Here’s an LED indicator which was made at home out of a Silicon Carbide (SiC) crystal (Internet Archive Mirror). The concept is simple, but a bit of trial and error ...

A light source that is created by a light emitting diode (LED). For decades, LEDs have been used as indicator lights on myriad products; however, starting in the 2000s, they began to replace ...

The bright LED lights are mounted on the side of traffic poles and light up when the traffic signals going in that specific direction are red. There is a red indicator light, which indicates a ...

The new LED combination lamp presents itself in a modern, rectangular design language and combines three lighting functions ...

The semiconductor light-emitting diode ... Increasingly, cars are equipped with LED indicator and brake lights. Most crucially, however, the LED is a vital link between electronics and photonics ...