Building an LED matrix is a fun project, but it can be a bit of a pain. Usually it starts with hand-soldering individual LEDs and resistors together, then hooking them up to rows and columns so they ...

I’ve had the pleasure of working at multiple startups of varying sizes. One consistent challenge I’ve seen is the pivot from being a sales-led organization to becoming product-led. Many startups ...

Until recently, options for non-incandescent light bulbs were fairly limited. There were the cheap and effective but harshly lit CFL bulbs, the expensive but high-quality LED bulbs, and the cheaper ...

When scientists at the National Renewable Energy Laboratory (NREL) tried to apply their expertise in solar cell technology to build a green LED light from the ground up, they surprisingly centered the ...

Early adopters of LED lighting will remember 50,000 hour or even 100,000 hour lifetime ratings printed on the box. But during a recent trip to the hardware store the longest advertised lifetime I ...

Wood carvers will sometimes use chainsaws to “rough in,” but finishing requires more subtle sculpting tools. In lighting, as with other crafts, no single tool is perfect for everything. Coarse or ...

In the world of TVs, the reigning champ technology has undoubtedly been OLED TVs, with their excellent picture quality and self-emitting pixels that deliver the best black levels and contrast in the ...

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 ...

Many people believe that the LED was discovered by US researchers working in the 1960s. In fact, Henry Round at Marconi Labs noted the emission of light from a semiconductor diode 100 years ago and, ...