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Forum Home | Plant Problems Home Start New Thread  |  Reply to Post Page: 1  2  Author Message Christopher 5/2/2006 10:20:22 PM Re: having some concernes The sun gives light at 5150 degrees Kelvin.  Have you seen the light that is MH and burns at 5500 K?  http://www.esuweb.com/products/243Coralife_Metal_Halide_Lamps_Metal_Halide_Lamps_METAL_HALIDE_LAMP_400_WATT_5,500_KELVIN.htm The degree Kelvin is not much without the CIR or color rendering index.  I recommend 5.3% red light 723.18 nanometers 36.3% blue light 508.7 nanometers 58.3% yellow light 616 nanometers to get 5150 K.
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