If you’ve worked on a project with small LEDs, you know the frustration of determining their polarity. This ingenious LED Probe from [David] packs a lot of useful features into a simple, ...

High-power light-emitting diodes (LEDs) used in lighting signs, warning lights, decorative lights, and as color backlights for cell phones and laptop computers. Colors include red, blue, yellow, green ...

CLEVELAND, Ohio -- Residents and motorists in several Cleveland neighborhoods will see their streets in a different light next month -- when the warm glow of traditional street lights is replaced by ...

For many, strolling around neighborhoods to look at the holiday light displays is an annual tradition that brings twinkling cheer. But with the rise of LED lights in the last decade, some of the joy ...

The polarity markings on LEDs (Light Emitting Diodes) seem to be a common cause of confusion. The polarity may be indicated by a flat section on one side of the body or by one lead being shorter than ...