I don't know if this will be of help but I have been reading on another forum about using the new LED light panels for indoor gardening. The 1 foot square panels sell for about $30 and you can get them in all white (for green plants), in all red or all blue, or mixed red and blue for blooming and fruiting plants. I would think that one of the all white plus using your own small pots would work for herbs.
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Lucy ~
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