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Question:

LED plant growth lamp.. What is the role of purple LED? Does purple promote the growth of plants?

LED plant growth lamp.. What is the role of purple LED? Does purple promote the growth of plants?

Answer:

I don't know. Does your violet mean UV? Ultraviolet is invisible to the human eye. It really works for plants, but not very much. It can be ignored.
LED plant blue light promotes green leaf growth; red light in LED plants contributes to flowering and flowering.

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