This article provides an overview of light-emitting diode (LED) technology, focusing on its efficiency, historical ...

This time around it’s [Dino’s] turn. He’s been asked to alter a light bulb efficiency demo so that it includes an LED option. The idea here is that you crank a generator to power different ...

White-light sources based on reliable and energy-efficient LEDs have only recently been made possible through developments in semiconductors (Fig. 1 shows a white-light LED in action). It is ...