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I normally just grow a crop out from seed through to harvest, but I want to setup a perpetual grow. I veg for 2 months and want to save as much electricity as possible. There is a 75W COB and a 70w QB . I understand that COBs have better light penetration and QBs have a wider spread/less heat...

Hello all! One of my plants has shown signs that I think could be possibly nute burn or a deficiency, but I am not sure. I grow in a 50/50 coco mix and temperatures hit 30 degree Celsius (Could this just be a nitrogen Deficiency with heat stress?) What do you all think?

QBv2 (Samsung LM301B) panels, fan-cooled by a 92mm SUNON fan, powered by the Meanwell LPV-100-24 at about 70W. Providing 183.7lm/W at the driven current, with an 88% efficient driver, this light outputs a total system efficacy of about 161lm/W, equivalent to 2.4uMol/J PAR efficiency. Looking...

I have been currently growing with a 250w HPS, I have had some nice results of it. I want to start a perceptual grow setup, so that I do not run out of supply for personal use.I was reading about the minimum amount of lumens needed per square foot (2000ish), I am aiming for close to 10000 per...