Incandescent lamps generate light by passing an electric current through a thin filament wire until the wire is white-hot. They are used mainly in residential applications because they emit a warmer ...

A 50-watt incandescent light bulb spews out 100 billion billion ... and that light has had the harmful portion of the visible spectrum removed from it as well as the ultraviolet," says Kitty ...

For white light, however, two or more wavelengths are required to generate a broad spectrum of light that ... based white lighting is to replace all incandescent bulbs and compact fluorescent ...