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I have a water culture bubbleponic setup and dont have a practical way to tie them down so I use twist ties and different various sized nuts to weigh down my branches for a fairly level canopy.

Hi, First post. Love the site. Anyone able to give or direct me somewhere on calculations what the lumen's a light source will output to a plant based on the distance with given distance and lumens? Ive seen this on wikipedia but it seems a little complex, or I got ADD. Can anyone simplify? An...

???- Can or do CFL lights grow the same quality and quant as fluorescent tubes per square foot - ??? ---- Assuming using them just as top lights And what is more important ? The light spectrum eg. 65000k vs 5000k, 2700k or the level of brightness (lumens) ?

Back to the original question. ???- Can or do CFL lights grow the same quality and quant as fluorescent tubes per square foot - ??? Anyone ?