UV A And UV B In Late Flower

whitebb2727

whitebb2727

Well-Known Member
nxsov180db said:
When you say you fry some plants when you're closer than eight inches do you mean with the heat or the amount of light? I've ran dual 18 bulb fixtures side by side within an inch or two of the canopy but I had a fan blowing on the canopy..
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It will cook them that close.
 
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whitebb2727

whitebb2727

Well-Known Member
nxsov180db said:
When you say you fry some plants when you're closer than eight inches do you mean with the heat or the amount of light? I've ran dual 18 bulb fixtures side by side within an inch or two of the canopy but I had a fan blowing on the canopy..
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T5ho? I've seen 16 bulb models. Who makes an 18? There is no way to run that many t5 bulbs that close to the plant. Two 18 bulbs would be over 1800watts. I call bull shit. There is no way to run that much power that close to them. My t5 bulbs will burn my hand.
 
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whitebb2727

whitebb2727

Well-Known Member
nxsov180db said:
https://www.rollitup.org/t/flowering-pix-5-weeks-after-switching-to-12-12-how-are-things-looking.732086/#post-9861516

Only time I had a problem was when a cola started touching one of the t5's and I didn't notice it was getting that close. Other than that I would keep the lights within a couple inches from the canopy, but I also had an oscillating fan blowing on the canopy at all times, I don't use t5's anymore but that's what I first started growing with, I needed a/c on full blast just to keep the room 80 degrees then I went with 3 600watt cooltubes and 3 450 actual watts led and eliminated my a/c and the same room never reached 80 ever again
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I looked. Yea you had a lot of lights. Those look q little further than an inch or two. About 4-5 inches. The lights are spread out further to. I'm running a fixture where the bulbs are double stacked. It concentrates the heat. If I spread them out wider I could get them closer.

I say to do end up getting with in 4-5 inches before its over. Slowly as the plant adjust to it.
 
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