Plants look great! How you finding invisiblesunleds? I've got the 260w dimmed to its lowest setting 40" above my seedlings but they seem to have slight leaf discoloration.
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Mine is full whack as I need all the heat I can get!!
I am toying with a second panel at flower ;-)
It is about 50cm from canopy. 35k lux.
They have been under it for most their lives. Although I started at 70cm and have lowered every few days.
I am impressed with the Invisible Sun - creating some very squat dense ladies with impressive side branching.
Especially being 21 days above ground