trippyhills
Member
Hey guys! I will be starting my first grow within the next month would appreciate a few looks over my plans so I dont go in blindly! 
Set up: I am going to be growing in a bedroom closet that is 3 ft. by 2 ft. by 8 ft. converting to 6 sq ft and 48 cu ft.
Within these dimensions, I will be growing 6 auto flower Northern Lights from seed in 3 gal pots containing a FFOF/Perlite medium. I will be providing a 18/6 light schedule. I plan to add nutrients starting late week 1 at ¼ of the recommended doses gradually increasing to ½ of the recommended doses. I have the closet lined with mylar, and have other equipment such as pH/moisture meter, temp/humidity monitor, timer, etc.
The thing that kills my high is the idea of which light to get due to ventilation in a small area. After crazy researching, like this article about Lumens per Sq Ft and using these Watts per Sq Ft and Exhaust Fan CFM calculators, it seems optimal is somewhere along the line of 6,000-7,500 lumens per sq ft and 50-80 watts per sq ft. For my grow room the best that would make it 6 sq ft X 6,000-7,500 lumens/sq ft = 36,000-45,000 and for watts that would be 6 sq ft X 50-80 watts/sq ft = 300-480 watts. Optimal ventilation is 48 cfm per min [Again, all of this is tailored to my specific measurements and not considered a standard by any means]
With my budget of $150 for a light, I am considering investing one of the following:
My question here is (I know right, finally) for a grow room of 6 sq ft and 48 cu ft, will a 400w or 600w HPS/MH with a cooling tube cause temperature issues even with adequate ventilation? Will I have to stay in the T5 low temp lights?
Thanks guys and toke on,
Trippy
[PS sorry for any errors on math or grammar, currently
]
Set up: I am going to be growing in a bedroom closet that is 3 ft. by 2 ft. by 8 ft. converting to 6 sq ft and 48 cu ft.
Within these dimensions, I will be growing 6 auto flower Northern Lights from seed in 3 gal pots containing a FFOF/Perlite medium. I will be providing a 18/6 light schedule. I plan to add nutrients starting late week 1 at ¼ of the recommended doses gradually increasing to ½ of the recommended doses. I have the closet lined with mylar, and have other equipment such as pH/moisture meter, temp/humidity monitor, timer, etc.
The thing that kills my high is the idea of which light to get due to ventilation in a small area. After crazy researching, like this article about Lumens per Sq Ft and using these Watts per Sq Ft and Exhaust Fan CFM calculators, it seems optimal is somewhere along the line of 6,000-7,500 lumens per sq ft and 50-80 watts per sq ft. For my grow room the best that would make it 6 sq ft X 6,000-7,500 lumens/sq ft = 36,000-45,000 and for watts that would be 6 sq ft X 50-80 watts/sq ft = 300-480 watts. Optimal ventilation is 48 cfm per min [Again, all of this is tailored to my specific measurements and not considered a standard by any means]
With my budget of $150 for a light, I am considering investing one of the following:
- 53,000 lumen for the HPS 8,833.33 lumen per sq ft and 66.6 watt per sq ft.o
- (should I spend 20 more dollars to get the 600 watt with 86,000 lumen HPS/61,000 lumen MH???)
- 20,000 lumen for a T5 3,3333.33 lumen per sq ft and 42.5 watt per sq ft
My question here is (I know right, finally) for a grow room of 6 sq ft and 48 cu ft, will a 400w or 600w HPS/MH with a cooling tube cause temperature issues even with adequate ventilation? Will I have to stay in the T5 low temp lights?
Thanks guys and toke on,
Trippy
[PS sorry for any errors on math or grammar, currently
]
With an HID, you're going to want an inline fan for the cooltube; they get hot. If you DO have adequate ventilation, I'd spent the money on a 600w dimmable... that way you can dim it down if your area is too hot.
