Full spectrum lighting is often defined as lighting that most closely mimics the natural light produced by the sun. Natural light and full spectrum lighting includes light in the visible spectrum as well as the ultraviolet spectrum.
There are a number of benefits associated with the light produced by full spectrum lighting. Full spectrum lights have a CCT (correlated color temperature) rating between 5,000K and 7,500K, which is relatively high, indicating greater brightness perception. Full spectrum lights are also known for their high color rendering. Perhaps one of the only downfalls linked with full spectrum lights is that they produce less light output per watt compared to regular lights.
There are several full spectrum lighting products on the market. These products are typically more expensive than other similar light source products that do not offer full spectrum lighting. A regular 4-foot, T12 fluorescent bulb can cost around $3.60 while a 4-foot, T12 full spectrum fluorescent bulb can cost upwards of $14.90, as of 2010.