Sometimes the most useful hacks are also the simplest ones. A case in point is the LED and resistor assembly that [Skippy] recently posted on his blog. The idea is to solder up some pre-made ...

A spectrometer is a pretty common lab instrument, useful for determining the absorbance of a sample across a spectrum of light. The standard design is simple; a prism or diffraction grating to break ...

Learn how to use the Stratus LEDs 100W module with helpful operating instructions and practical tips for better performance. ...

Colourful LEDs made from a material known as perovskite could lead to LED displays which are both cheaper and easier to manufacture in future. A hybrid form of perovskite -- the same type of material ...

Light-emitting diodes (LEDs) have revolutionized modern lighting and sensing technology. From applications in our homes to industry, LEDs are used for all lighting applications, from indoor lighting ...

First used as status and indicator lamps, and more recently in under-shelf illumination, accent lighting, and directional marking applications, high-brightness LEDs have emerged within the last six ...

LED bulbs are energy-efficient and designed to last for many years, but here are a few lesser-known features to consider when weighing a jump to LEDs. Martin LaMonica is a senior writer covering green ...

LED bulbs really are good for your wallet. Here’s how good. But how much could switching to these lights save you, and when could they pay for themselves in your home? During our tests, we looked at ...

Just before Christmas, I took my kids to the Brooklyn Botanic Garden for an exhibition called “Lightscape.” Neon lights electrified trees and made the gardens glow. In one large field, hundreds of ...

Anyone who has stood in confusion in the light-bulb aisle (and that's most of us) knows that technology and the push to save energy are continuing to flip the script on home lighting options. The good ...

Keeping up with new TV tech isn’t easy. Every few years, shoppers see new marketing jargon for features that companies promise will provide impressive improvements but often don’t live up to the hype.

Learn how a bootstrapped buck-boost converter can be used to extend the battery life of a low-cost, portable LED lamp.