The fluorescent lamps typically used for illumination are of little to
no benefit for plants as they do not produce the wavelengths necessary
for photosynthesis. You should choose those fluorescent lamps
specifically engineered for growing plants... they don't appear to
produce light of much intensity but they do produce the correct
wavelengths for growing plants rather than for illumination. Much
light is not visible to the human eye, and a good thing, or we'd be
either blind or dead... most harmful rays are filtered/absorbed by the
Earth's atmosphere... EVERYTHING absorbs light (energy).
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