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
DOES ANYBODY HAVE EXPERIENCE TAKING TEMPS FROM THE LEAVES TO HELP THEM KNOW THERE LIGHTS AT THE RIGHT HEIGHT
- Thread starter Rickypsimer
- Start date
Lucky Luke
Well-Known Member
Touch high but not to bad 27C is meant to be the number to aim for.
Rickypsimer
Well-Known Member
What that in f?
Rickypsimer
Well-Known Member
So should I move my lights closer to the point that the leaves temp read 80f considering the humidity and airflow is correct?
greg nr
Well-Known Member
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.
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.
LinguaPeel
Well-Known Member
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..
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..
getogrow
Well-Known Member
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
Listen to GregNR and add a heater if you need to increase heat at the leaf.
getogrow
Well-Known Member
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 !
Lucky Luke
Well-Known Member
Leaf Surface Temperature (LST) in Hydroponic Growing | Manic Botanix
LEAF SURFACE TEMPERATURE IN HYDROPONIC GROWING For most growers monitoring the air temperature and RH around the crop is sufficient for creating a reasonably optimised grow environment. However…
medteknutrients.com.au
Rickypsimer
Well-Known Member
Thank you very informative!!! Had to read it a few times to understand seemed like there were conflicting statements but I rereadLeaf Surface Temperature (LST) in Hydroponic Growing | Manic Botanix
LEAF SURFACE TEMPERATURE IN HYDROPONIC GROWING For most growers monitoring the air temperature and RH around the crop is sufficient for creating a reasonably optimised grow environment. However…
Lucky Luke
Well-Known Member
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.