What is Incandescent Lighting?
Incandescent lighting is the oldest and one of the most well known forms of electric illumination. The name is derived from the method used by incandescent lamps to generate light. Incandescent lighting is seen from thermal radiation from the heating of an object, whether it is the sun, a light bulb filament, or a candle wick. Most people are familiar with incandescent lighting in the form of light bulbs that heat a tungsten filament inside a sealed glass globe. A current of electricity is sent into the bulb. This current transfers energy to the tungsten atoms which begin to heat. The tungsten filament then heats to 4532°F(2500°C). If there were any oxygen in the sealed bulb, the tungsten would catch on fire, so most incandescent lamps are filled with a mixture of nitrogen and an inert gas such as argon. Incandescent lighting is the result of the thermal radiation that is emitted from the filament. About twelve percent of that radiation is visible light. This makes incandescent light b
