Learn why LED lights are a much more efficient lighting alternative. Thomas Edison perfected the first incandescent light bulb in 1879. It burned for 13.5 hours. And incandescent bulbs are still ...
A new approach to fabricating light-emitting diodes (LEDs) could be used to increase their efficiency by 20 percent while yielding higher-quality light than conventional LEDs. Researchers at the ...
LOS ANGELES, California -- Bright lights can worsen headaches, but a new study shows an LED light might do the opposite. Doctors Mohab Ibrahim and Rajesh Khanna tested green LED lights and white LED ...
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