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nobodyhere
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Cxm 22 3000k 95cri. are luminous. 36v 2100ma I’ve heard good things and can get them cheap. Ok so I can get bye with less than 500w. I’ve heard 50w psqf. But see you guys grow great plants with less. So I’ll just do 4 in each row with a dimmer. No problem with temps or humidity with led. Only got high when I added hps. Concrete wall helps I think. It all needs a paint job.
You should get a decent amount of reflection off that wall. I have lighter colored walls, and that is how I get by with so little in veg, the bounce off the wall is not too bad....actually measures better than the tent.
I would do each row on a dimmer and it's own plug so you can run em individually. Sometimes you get a 3' plant that wants a lotta light and a 5'+ that looks like it burns.
3k is the way to go for flower. Most plants will need a shit ton of Ca/Mg under these lights....start early.