QB 288v2 RSpec distance from plants

Growseidon

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Hi everyone!
First time grower and forum-poster, long time reader. I just started a seed, but one of the things I've been having a hard time figuring out is the distance between my light (QB 288 Rspec) and my plant (Greenhouse Super Lemon Haze). I'm running a small tent (40x40x120cm) and an AutoPot coco-run to get my feet wet, the big one with a fabric pot folded down in about half, 10L of coco. My idea was that I could, by using a lux meter, not have to move my light up and down constantly but leave it at the top and use the dimmer to get the proper amount of lighting. Together with LST as needed of course.


Am I completely wrong and should just try to dial the heights, and in that case which ones? Or is there some validity in keeping it as far up as I can and monitoring + varying the intensity based on calculated PPFD? I'll still keep an eye on her until it's all dialed in of course, but this would personally be much less of a PITA.

And last but not least, thanks to all of you for making this forum so great! I would not be even a sliver as wise as I was going into this without your existence.
 
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Hi everyone!
First time grower and forum-poster, long time reader. I just started a seed, but one of the things I've been having a hard time figuring out is the distance between my light (QB 288 Rspec) and my plant (Greenhouse Super Lemon Haze). I'm running a small tent (40x40x120cm) and an AutoPot coco-run to get my feet wet, the big one with a fabric pot folded down in about half, 10L of coco. My idea was that I could, by using a lux meter, not have to move my light up and down constantly but leave it at the top and use the dimmer to get the proper amount of lighting. Together with LST as needed of course.


Am I completely wrong and should just try to dial the heights, and in that case which ones? Or is there some validity in keeping it as far up as I can and monitoring + varying the intensity based on calculated PPFD? I'll still keep an eye on her until it's all dialed in of course, but this would personally be much less of a PITA.

And last but not least, thanks to all of you for making this forum so great! I would not be even a sliver as wise as I was going into this without your existence.
id say you have the right idea by using the dimming function if they start getting a bit leggy up the power and super crop goodluck with your grow :d5:
 
Ive got two of them in one of my tents, and they are very nice lights I will say! I also dimmed them down to 120w each. I usually start my seedlings at around 30” and then just pay attention, if they get too leggy I’ll bump them down a few inches. I just let the plant grow up to the light after that, keeping it around 18”-20” for most of the grow after that.

Here’s a nice little ppfd chart for these lights:
6933D345-195C-4EE9-91EA-E9D2EA0897A6.jpeg
 
Thank you both so much for the advice! In that case I think all that's left for me now is to patiently wait for her to show her head. :smoking:
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Thank you both so much for the advice! In that case I think all that's left for me now is to patiently wait for her to show her head. :smoking:
View attachment 1245082
maybe start up a thread in the new growers section its a good way to get tips and maybe meet some other like minded folks
 
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