After two summertime outside grows, I have decided to start an indoor led grow for the first time. I am pretty well decided on some of the basic equipment,but I have a couple of questions that may determine success or failure. The first is I am planning on putting my grow tent in my cellar. Right now the the temp. in my basement is about 55 to 60 degrees F. Is that too cold? I know LEDs run cool and have fans, but will the tent insulate my plants? The other question is i plan on getting a Mars 2 hydro 400 to light a 3.5x4 tent. How many plants can I grow in that size tent? I would be grateful for any and all advice.
New Grower New led set-up
- Thread starter Philip
- Start date
A Gardener
working Jah garden
The tent will insulate your plants, how much though I can't tell. For about two weeks the temperature outside my tent early during my current grow was at 32-40 degrees F. It meant I ran lights 2 x 250 w CFL 24/0 and had no extraction. Doing this kept the temperature inside my tent above 60 degrees F. If your plants themselves are below 60 degrees F I think it may slow growth or change growth, but it wont damage plants.
That probably clarifies very little for you! Good luck.
That probably clarifies very little for you! Good luck.
Anthropolis
Canna Jedi in training.
Yeah, you might even be able to squeeze 4 autos in there, maybe more someday with more light. Although I'd say go for 2 and work them big, versus more smaller plants cramped. 
Hi Philip try setting it all up and running then you can judge how often to extract i have had mine running all winter in similar circumstances and have done well so go with it bro adapt and overcome
A Gardener
working Jah garden
Is that 3.5 foot so 1m x 1m?
Mines 0.7m x 0.7 m and 4 autos is fine but tight, it'll be strain dependent............ I haven't grown super-autos for example and if I ever did photos in there it'd be two or one beast. You can find some very controllable girls.
I go by pot sizes, my lights reflector is 0.6 x 0.6m. I figure I can have 4 pots up to a diameter of 30cm that sit nicely under it with a little room for movement etc. I LST to pot edges like a spider and then let them go up, the pot and the area above it is theirs.
Don't know on the light though.
Mines 0.7m x 0.7 m and 4 autos is fine but tight, it'll be strain dependent............ I haven't grown super-autos for example and if I ever did photos in there it'd be two or one beast. You can find some very controllable girls.
I go by pot sizes, my lights reflector is 0.6 x 0.6m. I figure I can have 4 pots up to a diameter of 30cm that sit nicely under it with a little room for movement etc. I LST to pot edges like a spider and then let them go up, the pot and the area above it is theirs.
Don't know on the light though.
Mars 2 400 isnt enough light for that space. It could work for veg, but flowering youll need to add another 400 or something similar IMO.
I run with 2x300w mars hydro for a 1mx1m
Personally if I had it to do over, I would go with the reflector series, you can turnoff excess red and save $ during veg. 2 lights is always better than 1, one could fail and then you have something left at least.
