Researchers have unveiled a solar-powered wireless sensor mesh architecture in which a single node monitors ten streetlights, ...

Before the advent of effective semiconductor LEDs many display types existed to display things like numbers and other ...

Now's the time for a glow up.

All [Hannah Robertson]’s Birduino needs is for one to tap an NFC-enabled card to the reader, and the device plays one of the ...

Smartphones may give us an easy access to a light source, but for seeing objects at a distance or brightening a workspace in places like the attic or under the sink, you need the power and range of a ...

Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors.