Limit the time your Christmas tree lights are on to six to eight hours, preferably while someone is awake and able to monitor ...

In this project, I'll make a small circuit capable of blinking lights, on its output we get a digital signal that we can use ...

The LED, or light-emitting diode, is very unlikely to fail, and if it does, it goes out slowly over the years. Instead, it's the other electrical bits in LED bulbs that fail and cut off the bulb's ...

It’s the first weekend after Thanksgiving, and putting up Christmas lights or your tree may be on your to-do list.

Discover how to build a simple wireless power transfer system at home using readily available components like enameled copper wire, an LED, a 2N2222A transistor, and a 9V battery. This step-by-step ...

Abstract: Deep ultraviolet light-emitting diode (LED) sterilization and germicidal lamps with short-wave characteristics, can be used to replace the traditional ultraviolet mercury lamps, is a new ...

Exposure, storage conditions, and repeated seasonal use cause insulation to weaken and wires to fray. "One faulty wire or ...

Abstract: A single-stage LED driver based on an interleaved buck-boost circuit and an LLC resonant converter is proposed. The buck-boost circuit and the LLC resonant converter are integrated by ...