• Here is a link to the full explanation: https://rollitup.org/t/welcome-back-did-you-try-turning-it-off-and-on-again.1104810/

when you use foil

KaleoXxX

Well-Known Member
neither side, you want to go for a trip to walmart and get emergency blankets or mylar wrapping paper or windshield reflectors. there mad cheap, and not hard to find
 

leetsoup

Well-Known Member
and the reason for this is that tin/aluminum foil reflects more heat than it does light, and while it is reflecting light, it's imperfect surface has a tendency to create hotspots that are damaging to your plants.

when you get your emergency blanket, it is sometimes difficult to determine which side let's light through, and which one reflects it; the key is to make note of the final fold in the blanket, the inside fold has the reflective surface.

p.s. i do not at all suggest using tin foil. your better off avoiding the risks of foil.
 

mazpot

Active Member
and the reason for this is that tin/aluminum foil reflects more heat than it does light, and while it is reflecting light, it's imperfect surface has a tendency to create hotspots that are damaging to your plants.

when you get your emergency blanket, it is sometimes difficult to determine which side let's light through, and which one reflects it; the key is to make note of the final fold in the blanket, the inside fold has the reflective surface.

p.s. i do not at all suggest using tin foil. your better off avoiding the risks of foil.

I agree man use white walls or white paper.
 

That 5hit

Well-Known Member
the lights by themself would do fine intill you by some paint (flat white), its the best
mylar is laminated foil and also causes hot spots and can also be found at most 99 cent dollar stores in the form of gift wrapping paper for less then anywhere else
 

NarrowEye

Well-Known Member
dull side works good, i used this but only once. since my second indoor grow i used flat white paint.
 

breakneck

Calyx LED
I have had no problems ever with the dull side of foil. Just be as neat as you can - no wrinkles!

Mylar is ideal, however...
 

seamore

Active Member
I have had no problems ever with the dull side of foil. Just be as neat as you can - no wrinkles!

Mylar is ideal, however...
yeah i set it up already with the dull side out because thats what i heard before and since i wont have much heat for the room since the outside of the room is ran by a a/c im trying to get warmth in the closet
 

kevin

Well-Known Member
the foil will be fine until you can afford better. just be careful with temps. i wouldn't worry much about hotspots using cfl's good luck.
 
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