Specialty lighting technology - Horticulture lighting | GE Lighting Europe
Jared Sperli stashed this in science
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I did not know you could use artificial light this way:
Plants respond to light of varying colour. In general, red light causes plants to become tall and “leggy” while blue light, when used alone, can cause low, stocky growth. A proper balance of red and blue energy produces plants that have normal growth and shape.