More than a century after their invention, tungsten filaments—the coiled metal wires at the heart of many incandescent light bulbs—continue to be popular. This is despite the growing market for LED ...

Not all household incandescent light bulbs are going to disappear because they can't meet new federal efficiency standards. That's what some readers wanted to know, along with many other questions, ...

Energy-saving bulbs may have some competition in the shape of an ageing technology. Scientists have developed a new kind of incandescent light bulb that uses modern science to ramp up its efficiency, ...

Do you know that the light bulb, a revolutionary invention that transformed daily life, fundamentally works by converting electricity into light through heat? This ingenious device, commonly found in ...

SAN FRANCISCO (AP) — Get ready to say goodbye to the once ubiquitous incandescent light bulb, pioneered by Thomas Edison more than a century ago. You can thank — or blame — new federal energy ...

FILE - Manager Nick Reynoza holds a 100-watt incandescent light bulb at Royal Lighting in Los Angeles, Jan. 21, 2011. New federal rules governing the energy efficiency of lighting systems went into ...