Light-emitting

Light-emitting devices, including mobile phones and yep, the iPad, tell the brain to stay alert.

Ban Portable Electronics Before Bed For More Restful Sleep | Lifehacker Australia 2010

Light-emitting diode bulbs are the next big thing in lighting, with manufacturers claiming they rival the look, dimming ability, and light quality of incandescent bulbs yet use much less energy and last 25 to 50 times longer.

How many legislators does it take to change a lightbulb law? 2010

Bloomberg News Light-emitting diode light bulbs are displayed for sale at a Home Depot store in Emeryville, Calif., in June.

The Math Changes on Bulbs Kate Linebaugh 2011

Light-emitting diodes and lighting systems are loosely related to the rest of Siemens's business.

Siemens Lightens Up for New Growth Phase Matthew Curtin 2011

Light-emitting diodes (LEDs) have come a long way, baby, and they are often 10 times more efficient than compact fluorescents.

Low Impact Living: 10 Ways to Cut Home Energy Consumption 2008

Light-emitting devices, including cellphones and yep, the iPad, tell the brain to stay alert.

Caution: iPad reading may disrupt your sleep cycle Nomad 2010

Light-emitting diodes have been used as a source of lighting for years, but mainly in commercial settings such as parking garages because of their high upfront cost compared with other types of lighting.

Cleaner Light Sources and Electric Rides 2010

Light-emitting diodes LEDs represent various types of semiconductor devices that produce incoherent narrow-spectrum light fascicles when powered with a steady-state voltage electrical source, producing the effect known as electroluminescence.

System Led | Surveillance 2010

Light-emitting diodes are inspected under a microscope at a Cree facility in North Carolina earlier this year.

In China, Western Firms Keep Secrets Close 2010

Light-emitting diode bulbs are the next big thing in lighting, with manufacturers claiming they rival the look, dimming ability, and light quality of incandescent bulbs yet use much less energy and last 25 to 50 times longer.

How many legislators does it take to change a lightbulb law? 2010