There are several reasons to choose LED bulbs for the light fixtures at home. First, they are much more efficient than ...

In addition to sunlight, ultraviolet rays are also given off by several different forms of indoor lighting, including compact fluorescent lamps (CFL’s). CFL’s are commonly long, cylinder shaped and ...

They've had a good long run, 134 years ... Their replacement equivalents, compact fluorescent lightbulbs and light-emitting diode bulbs, are bright, use 75 to 80 percent less energy, and can ...

A light source consisting of a long glass tube containing mercury in a partial vacuum. Available in many lengths and several diameters, the tube is lined with a fluorescent phosphor. When the ...

In a study recently published in The Wilson Journal of Ornithology, the researchers report their discovery of fluorescent pigments in the feathers of Long-eared Owls, that can only be seen by humans ...

For example, when red, green and blue LEDs are combined, they produce white light. Another method uses a blue LED and yellow or red phosphors. For a long time, LED bulbs were much more expensive ...