|
What are full spectrum lights? The basic answer is that these lights are intended to be the closest thing to natural sunlight available. When bright light was discovered to treat seasonal affective disorder and other problems, efforts were made to mimic sunlight as closely as possible. Several studies show the benefits of full-spectrum light on worker alertness and performance.
This new lighting technology was seen as a great improvement over fluorescent lighting that has been around for years. Though fluorescent lights were inexpensive to use they produced lighting with a green or purplish hue. The magnetic ballasts often operated at a frequency that caused many people to become sick or nauseated. Those who might suffer epileptic seizures were more susceptible in this light. Some people would even get migraine headaches from long exposure to fluorescent light. Full spectrum lights are sometimes used as light therapy for alleviating symptoms associated with seasonal affective disorder (SAD), fatigue, and insomnia. These lights show colors more accurately than many conventional lights. They also increase the contrast between black and white, while reducing glare and eye fatigue. As you look at full spectrum lights you should be aware of the terms Kelvin Temperature and Color Rendering Index. Kelvin Temperature indicates a specific hue or color of a light source. Scientist William Kelvin developed this temperature rating scale in the late 1800’s. The Color Rendering Index is a 100-point scale that represents how closely a light source depicts or reflects an object’s true color. In the lighting industry, a CRI of 85 or higher depicts a truer color. Numerous companies offer lighting products under the full spectrum banner. For example, the newer fluorescent tubes that simulate noontime daylight are just $15 each. Full spectrum desk and floor lamps are also available from these companies. Examples include floor lamps that start at about $65 and full spectrum desk lamps ranging from $45 to $85. Businesses have started to use these lights to reduce employee eye strain and vision fatigue. Just because you buy a floor lamp or desk lamp for its natural light does not mean you have to sacrifice style and appearance. Many of the newer models of full spectrum lights are available with a beautiful wood finish or exquisite brass pedestal. A full-size floor lamp with an antique brass look and white fabric shade is about $100. The lamp has a sturdy, weighted base for stability. One company even offers a dimmable lamp that allows you to adjust the natural light from 100% down to 10%. Full spectrum lights are an improvement you can live with. |
Lighting Types and Bulbs