Fans on during lights off?

mrwood

Well-Known Member
Depends!
I leave my circulation fan on 24/7
If you use a fan to cool your lamp, you could turn that off when you lamp goes off. Just monitor you temps & humidity to make sure it stays in a good range.
Some people modulate the fan speed based on the room temperature. I also leave my lamp fan on 24/7 because it is hooked up to my carbon filter, and I want to maintain negative pressure in my grow box.
 

eNdo413

Member
Ive been running 24/7 all through veg witch was on 24 hr light. Just went into flower two days ago and I've kept them running. A friend recently suggested that i shouldn't run fan 24/7 and should have it come on in half hr intervals.. Never heard that b4 so i thought I'd ask.. Thx
 
Yea 24/7 for sure is best...keep that air circulating, they still need fresh air night or day...also switching fans on after dark can create immense stench when expelled. They stink at night.
 
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