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Let me rephrase that question. What COBs will be used to grow the plant in this contest - just the ones over the top. So if you will use the 6500K for veg state that then say the 2700K and 3500K for flower etc. Does that make sense to you? we can also list whatever is in the space. What size is the space?2700k, 3500k, 4700k, 5700k, 6500k, auto cobs, my built cobs, crxsunny, have some 1750k also that I'm almost done with also. My brother builds cobs and led boards and stadium lights for Americas largest lighting company so have some that are customer cob boards made to multiple spectrum