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Denny

Is light from a fluorescent (energy saving) bulb helpful for a plant's growth?

Jack:

Ordinary flourescent lamps are not very beneficial, but "Gro-Lux" lamps are intended for use over aquaria and indoor plants.

Denny:

What about blacklight bulbs? They emmit UV rays. Would they be benificial to plants' growth?

Jack:

Blacklights too may be useful, but not optimized.

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