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Bert H,

Few of us in different regions of US determined that having higher K levels of light will have noticeable impact on internodal distance.

Steve Hampton (FL), Tula (CA), Vicki (KY), Ghazanfar (VA) and myself (NJ); we all did test run about 4 years ago by using 9325K vs. 6700K and difference was well noticeable. Ambulia was one of the samples.

9325K level helped plants to form shorter internodes and created "bushy" growth.

Some people disagree with that :idea:
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