DOES ANYBODY HAVE EXPERIENCE TAKING TEMPS FROM THE LEAVES TO HELP THEM KNOW THERE LIGHTS AT THE RIGHT HEIGHT

Rickypsimer

Rickypsimer

Well-Known Member
IM USING LED ONE MARS HYDRO SP600 AND A KNOCKOFF WITH THE SAME SPECTRUM I HAVE THE TOOLS TO TAKE LEAF TEMPS BUT THE LAST I RECALL IT WAS 84F WITH LED AND THAT SEEMS HIGH
 

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So should I move my lights closer to the point that the leaves temp read 80f considering the humidity and airflow is correct?
 
Put your lights as high up as you can get them and leave them there. The leaf surface temp isn't as important as the amount of light they are getting, and it is much easier to kill a plant with too much light than too little.

As a new grower, your goal should be to get to harvest. Don't shoot yourself in the foot trying to optimize one specific parameter. Once you get a few runs in and haven't killed your plants, you can start to optimize.
 
84 is not high God damn my room hits 90 regularly.

Buds are full of perpetually flowing water and create no heat of their own, its a lot harder to overheat them than people pretend. Even new seedlings feel like a cold wet greenhouse up close, they are perfectly chill, oily and stinky at 90°. Unless you're spraying them with oily shit of your own..
 
LinguaPeel said:
84 is not high God damn my room hits 90 regularly.

Buds are full of perpetually flowing water and create no heat of their own, its a lot harder to overheat them than people pretend. Even new seedlings feel like a cold wet greenhouse up close, they are perfectly chill, oily and stinky at 90°. Unless you're spraying them with oily shit of your own..
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I agree , we aim to keep it cool but its way harder to "overheat" them then most on the forums say. I got a buddy who has never hit anything lower then 95f ......his shit aint top notch but it grows to finish and aint too bad. His numbers would have the science freaks saying its impossible. I read 20 years ago that the stomotas close in the upper 80's......if that was all the way true then them plants would never surivive. The living soil and the plants themselves change according to their environment just like anything in the wild. This dudes canopy has to be around 110f during lights on (prolly higher) and ive never seen them "overheat" an die.
Again , science an real life prove they are both "right", just different.
The plants themselves do make heat though, it aint much but it surely counts.




soil :joint:
 
Rickypsimer said:
So should I move my lights closer to the point that the leaves temp read 80f considering the humidity and airflow is correct?
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Between 70f and 90f is fine. We aim for 80f at the canopy. The plant will not care about 4 or 5 degree either way. With them leds , id keep them as close to the plant as possible without the canopy getting too hot. "Too much light" is hard to achieve with small led but its possible.

Everything "looks" amazing in there , keep up the good work !
 
Keep it simple. Place your hand on the leaf palm side down. If the back of your hand is pleasantly warm you are within range. Grow plants or grey hair. I prefer to grow plants and let the grey fend for its self. Peace.
 
MICHI-CAN said:
Keep it simple. Place your hand on the leaf palm side down. If the back of your hand is pleasantly warm you are within range. Grow plants or grey hair. I prefer to grow plants and let the grey fend for its self. Peace.
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Thats true enough, but IR guns are cheap as chips and its a faster way of measuring, u can also take the leaf temps in a few different placers on the canopy in 5 secs flat. Its a really good tool especially if ur not running in a sealed room and ur temps fluctuate.
 
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