Aachen, Germany – Scientists from Philips Research have developed the first-ever organic light emitting diode (OLED) module that can be powered directly from a mains electricity supply. The prototype ...

AmazonBasics AC Powered Computer Speakers will bring more power to your PC or mobile device, but their lack of bass and flat sound reproduction are big drawbacks. Recommended for only the most ...

It's expensive replacing batteries for devices that don't have an AC adapter socket, but if you've got a little time you can make your own AC-powered "batteries" that will power your device without ...

Stefan de Vrij has won plenty of praise for his decisive performance in yesterday’s Serie A derby between AC Milan and Inter Milan. TuttoMercatoWeb highlight the solid scores that the Dutchman ...

The circuit below illustrates powering a LED (or two) from the 120 volt AC line using a capacitor to drop the voltage and a small resistor to limit the inrush current. Since the capacitor must pass ...