and not useful for any sort of indication or lighting. The first visible-spectrum LED was built at General Electric in 1962, with the first commercially available (red) LEDs produced by the ...

Its 1,000mAh battery is good for up to 90 minutes of illumination at full brightness, which is 220 lumens of light. There’s ...

I wanted to find out what really sets LED lighting apart from traditional bulbs - and as it turns out, there's a lot more to it than just energy savings.

Lighting LEDs are a route to energy efficiency that also allow creative effects that were not possible with incandescent bulbs and fluorescent tubes. Lighting LEDs are a route to energy efficiency ...

Figure 2b presents the spectra for two phosphor-based white ... Methods under investigation include ways to increase the amount of light hitting the LED–air interface at near-perpendicular ...

Greetings, stargazers. Spring is galaxy season for many amateur astronomers. However, when looking through an eyepiece instead of a camera for astrophotography, you might think of this as the season ...

What are the best LED light strip lights ... the look you want dialed in perfectly and as they support the whole RGB spectrum, you can find a hue to match your home decor or mood.

From screw-in bulbs and colorful LED strips to table lamps and outdoor string lights, check out the best smart lighting we've tested for illuminating your space and setting the mood. I'm PCMag's ...