First time grower here.
I have a 4x4 tent with the ROI-E680 light. Growing in Riot Root, is it okay for me to dim the Light down to 40% abs and put the light at 1’-1.5’ above the seedlings? or do I need to buy a T5 light system for the seedlings?
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Seedlings- 24" away @ 40%
I took PAR measurements at different heights and %. Here is the video I made on it. Skip to 10:06 to hear my thoughts on heights for different stages: