The numbers you see on the box don't always work out in real life. LED bulbs do last longer, but those claims about five to 10 years are estimates based on internal testing -- and companies are always ...

This video explains how LEDs (Light Emitting Diodes) work and why they’ve become one of the most important components in ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I ...

In a metal like copper, however, the outer electrons swim around freely and are shared by all the atoms. That’s why ...

Before a spectrometer can do any useful work, it needs to be calibrated to identify wavelengths correctly. This is usually done by detecting several characteristic peaks or dips in a well-known ...

A tough, foldable 30W LED floodlight that turns late-night garage jobs into daylight — the perfect companion for riders who like to wrench after hours.

The Treedix multifunction USB cable tester quickly identifies which cables still work and which ones belong in the recycling bin.