Illumination from light-emitting diodes (LEDs) used to be reserved only for commercial or industrial uses that could justify the high cost of the LED -- the typical example being where the bulb was ...

They’re consistently popular with the readers, which is admittedly part of my (and EDN’s) motivation to continue doing them. But I personally also find them fascinating; inevitably I come across at ...

I’ve also treated the topic of LED illumination more conceptually; take, for example, this piece from more than seven years ago that analyzed LED and CFL light bulbs as potential successors to ...