LEDs (Light Emitting Diodes) are everywhere. But how do these tiny components turn electricity into light? In this video, we explain the simple yet powerful science behind LEDs. You’ll learn how they ...
IEEE Spectrum on MSN

LEDs enter the nanoscale

But efficiency hurdles challenge the smallest LEDs yet ...
LED technology has come a long way in the last five years, and in 2020 there are a bunch of brands selling well-made, well-engineered LED replacements for your car's old halogen headlight bulbs.