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Full Spectrum lamps harness the full range of UV light that the sun provides. Full spectrum lamps cast a clean and true light, and effectively emulates the sun. This is especially useful for those who benefit from this type of light. Artists, readers, craftspeople, or those who are unable to spend much time in natural sunlight benefit from balanced, full spectrum lamps
Technically speaking, Full Spectrum light covers the electromagnetic spectrum from infrared through near-ultraviolet, or all wavelengths that are useful to plant or animal life; in particular, sunlight is considered full spectrum, even though the solar spectral distribution reaching Earth varies with time of day, latitude, and atmospheric conditions.
The choices of green lighting include artificial sunlight that can be used as a remedy for winter depression when the days are shorter. Another green lighting choice is full spectrum lighting which creates an effect similar to natural sunlight. Beyond that, Energy Star has predicted that if people in the U.S. were to trade five of their inefficient lamps with Energy Star approved lamps, greenhouse gases can be dramatically reduced.