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The iblazr external smartphone flash impressed us when it launched on Kickstarter two years ago, so much so it featured in our recent guide to the best smartphone camera accessories. Now the team ...

Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further than ...

It’s hard to believe that the first blue LED didn’t arrive until 1993. They look simple, but looks are deceiving (Fig. 1). 1. Image showing a blue InGaN-based LED with gold wire contacts (0.4 × 0.4 mm ...

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Forget harsh bleach—scientists have discovered that powerful blue LED light can erase yellow stains from sweat, food, and oils without harming delicate fabrics like silk. By harnessing oxygen in the ...

This portable Bluetooth flash is perfect for those who thrive on nightlife. Photo: George Tinari/Cult of Mac As far as smartphone cameras have come with improved low-light shooting and intelligent LED ...