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How much does temp rise when lights on?

Just put in a 600w(up from 150w) and the temp inside goes up by 5 deg to 81 when the light turns on. Before with the 150w there was no real change. Just wondering how much it typically increases? I think 81 should be ok, but would like to get it down a few deg if I can.
 

DrFever

Active member
Veteran
Yo frank as long as you got good air flow and ventilation i would personally run temps 82 - 88 my last few grows i find that range to seriously work well
 

medmaker420

The Aardvarks LED Grow Show
Veteran
Always first go off of your ambient room temperature and if you have adequate exhaust it should only go up 5 to 10 degrees BUT you will never be able to cool it further than ambient. I am sure you know that BUT some really think with enough airflow they can "cool" air with a fan which isn't the case.

Have a good exhaust with decent fresh air in the room and all will be good. Also since you are going from a 150 to 600 don't forget light distance from the top of your canopy.
 

vukman

Active member
Veteran
Yo frank as long as you got good air flow and ventilation i would personally run temps 82 - 88 my last few grows i find that range to seriously work well

I second this^^^^^^^^^^^^^^^^^^^^

During the summer, my temps would get up to around 33C which is around 91F. Had 2 fans going in the tent and no ill effects...

Good Luck
 

DrFever

Active member
Veteran
I second this^^^^^^^^^^^^^^^^^^^^

During the summer, my temps would get up to around 33C which is around 91F. Had 2 fans going in the tent and no ill effects...

Good Luck


Yup i have had it up there 2 one must remember that with them temps watering is needed more as plants transpire more but yup i will never run temps below 82 growth is tri fold i keep temps 72 - 76 light off :)
 
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