4 x 8 tent in a cold garage

M

mile

Member
I’m getting ready for my first grow and have a few questions
Planning on 2 600w HID lights for 8 plants
Will two 600w lights on 24/7 provide enough heat without a supplemental heat source?
On a 600w dimmable ballast when turned down do you need a lower watt bulb?
Why can I not find a 600w MH bulb, only a conversion bulb? And what is the difference?
Thanks for your help
 
Jeezer

Jeezer

Member
they dont make 600w mh. And 2 600w lights can provide your room with sufficient heat to keep your room at desireable temps all depending your teps outside and if you are using air cooled hoods or not. What are the temps like right now where you live?
 
M

mile

Member
the temp is 40's during the day and in the teens at night, the garage is insulated and slightly warmer but not heated, i was planning on cooled hoods but not installing the ducts and glass until summer to keep the heat in the tent
 
Jeezer

Jeezer

Member
yea that would work. your really gonna need a heat source when your start turning off your lights for flowering though. You want to keep the temps in the 70's and humiditity under 50% i usually like it under 40% for flowering
 
rzza

rzza

Well-Known Member
with them on 24 hours, i dont care ow cold your garage is, you will STILL need to cool the tent. air cooled hoods ftw.
 
Jeezer

Jeezer

Member
rzza said:
with them on 24 hours, i dont care ow cold your garage is, you will STILL need to cool the tent. air cooled hoods ftw.
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i have 4 600w hps in a 10x10 room with only the glass cover on, no exhaust venting.
Temps outside are around 55-65 and the grow room stays at 78-85. i have a small a/c for whenever it gets out of hand
 
rzza

rzza

Well-Known Member
well i tried two 1000s in a 4 x 8 tent IN A COLD GARAGE, my intentions were to save money by not cooling it lol it didnt last an hour. granted it was only in the 40s outside. still....
 
M

mile

Member
I was planning on a 4" fan and carbon filter on a thermostat for now, and get a 6" this spring for the lights, are the conversion bulbs ok? or would it be better to go with 3 x 400w lights
 
Jeezer

Jeezer

Member
rzza said:
well i tried two 1000s in a 4 x 8 tent IN A COLD GARAGE, my intentions were to save money by not cooling it lol it didnt last an hour. granted it was only in the 40s outside. still....
Click to expand...
I totally missed the part wher he said its was a TENT inside a GARAGE. i thought it was just a garage lol my bad
 
Kerovan

Kerovan

Well-Known Member
rzza said:
clearly an assumption and not advise based on experience.
Click to expand...

Is based on limited experience, but not the exact same setup. I tried a room in my basement where the temps were around 60 in the winter, with a 400W light the temp only went up to 64, I had to add a space heater. I don't see 2 600W lights bringing the temps up from the teens to 70+

expecially when it comes time to flower and the light can only be on for 12 hours.
 
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