how do they work, and are they worth the hype? What Are LED Masks? LED masks are wearable devices that use light-emitting diodes (LEDs) to deliver specific wavelengths of light to the skin.

QNED and OLED are a set of competing television display technologies -- here's what makes them unique from one another.

What would you do if you came across a 100W, 7500 lumen LED diode for under $10 ... for 32-34V with a current draw of 3000mA, which works out to about 100W. Its brightness? 7500 lumens.

The semiconductor light-emitting diode, or LED, is a key component of today's technology. Modern households have numerous tiny glowing indicators — provided by LEDs — that are used for reading ...