11-11-2012, 04:29 PM
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Filiment = CC-8 - This a double coiled tungsten filiment burns at 4840 degrees with a kelvin rating of |
2960K and does not include the coating on the inside of the bulb glass
4840 degrees Fahrenheit = 2944 Kelvin, Kelvin is first and foremost a temperature scale, and in the context of incandescence it describes the temperature of the light source. The K rating for fluorescent lighting is really 'correlated color temp' not actual temp. It is a measure of how well it replicates the appearance of an incandescent source at that actual temp.
I will have to find a light with a kelvin rating of 6500 - 6700 for the plants and for the fish the same light would have to have a CRI of 90 or better with a lumens output of 1270
I think it will be difficult to find a fluorescent bulb with that high of a CRI rating due to the interrupted spectral output of this type of lighting, even those sold as full spectrum have peaks at certain wavelengths and not the continous spectral output of incandescent sources needed for complete color rendering. They may be available though, I've never paid much attention to this number.
Regardless, I don't think it will give you the effect you are looking for. My thoughts are that the coloration of the fish under the incandescent bulbt is a combination of both quantity and quality of light produced, neither are ideal for plants. It may be the case where you can have one or the other (aquatic plants are not present in the natural habitats of most aquarium fish), but not both, though with some experimentation, you may be able to find a compromise.