Instead of simply replacing the outdated bulb, we decided to build a small dark detecting circuit with 2 yellow LEDs based on this Evil Mad Scientist Laboratories design. After successfully ...

The patented topology of FL7732 enables the most simplified circuit design, especially for LED lighting applications. By using a single-stage topology with primary-side regulation, an LED lighting ...

In a series circuit, the current passes from the power ... Taizhou Haoran Machinery sells machines that create LED holiday light strings. Here's how it works. First, the wire is fed into the ...

Of course, the resistor also has to have a sufficient view of the LED. You might use this as a safety light that only works in the dark. A simple circuit, but it just goes to show that we tend to ...

Castle Wonderland had one of the first fully-dimmable LED-lit rooms anywhere, when, in 2011, I made up 11 luminaires, each with an early 3W Cree led, and ...

That means inside every LED bulb are tiny circuit components — and their soldered contact points — which are far more vulnerable than the diode itself. The Lighting Research Center of the ...

Have you ever bought a new LED bulb that promises to last for years and years, only to find it burns out within a year or so, just like a poor-quality incandescent? You're not alone -- and it's ...