The color temperature is 2700 K for incandescent light and 3000 K for halogen light. This type of lighting should only be used as a supplement for good plant growth due to the increased development of heat. All fluorescent tubes should be replaced after 6-12 months. They significantly loose their output. This however is not visible to the eye.
Different types are available.
Life forms requiring low light will do fine with regular tubes. Full spectrum tubes, come as close to the sunlight as possible. There a combination might be advisable, as corals need a more blue color spectrum. Remember that the red color also enhances algae growth in combination with high nutrients. Halide Lighting More on the expensive side, this light source will provide very intense light.