light burn / heat stress??

bankcee

Well-Known Member
I'm on botanicare kinds schedule, in veg and the 1000 was like 8 inches away in air cooled setup the others seemed fine.. but a few seems to have issues heat, and light burn. I think. but that's why I want your opinions to help me sleep at night lol

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bankcee

Well-Known Member
cause I placed my hand on top of the plant and the light wasn't burning me but also I had a heater blowing maybe a foot away from them directly on them.. I think that was more heat stress!
 

Antgotaclue

Well-Known Member
That looks more of it turning bad I maybe wrong but I've just had some light burn and wasn't nowt like that man
 

OldMedUser

Well-Known Member
I use 400s and a 1000w HID and 8" is close for a 400. 18" is plenty close for a 1000W. 24" when plants are smaller.

I got one of those laser heat guns recently on sale and use that now to make sure the leaves at the top aren't hotter than 85F and adjust my light up or down as needed. Also have a small fan blowing over the canopy to help keep heat from the tops while a 12" oscillating fan blows back and forth across the plants to keep the air mixed well in the room. Room temps are controlled at 75F.

Much more accurate than the hand under the light way to judge temps.

:peace:
 

bankcee

Well-Known Member
I use 400s and a 1000w HID and 8" is close for a 400. 18" is plenty close for a 1000W. 24" when plants are smaller.

I got one of those laser heat guns recently on sale and use that now to make sure the leaves at the top aren't hotter than 85F and adjust my light up or down as needed. Also have a small fan blowing over the canopy to help keep heat from the tops while a 12" oscillating fan blows back and forth across the plants to keep the air mixed well in the room. Room temps are controlled at 75F.

Much more accurate than the hand under the light way to judge temps.

:peace:
what does the damage look like to you?
 
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