400w CFL grow

akgrower420

akgrower420

Active Member
I am planning to build a grow with 4 100w CFLs.
how many fans will i have to use for this. Its is about 2 feet wide x 3 feet deep x 5 feet tall
Im using soil, is it bad to use miracle grow soil

All posts for CFL welcome
 
O ya Miracle Grow is crap. Use FoxFarm if available. You should only need one fan as well. What are you growing?
 
Skip the CFL's and go with a 400W MH and/or HPS. Should only set you back around $120. Besides, something tells me that running 4 100W CFL's will heat up your grow space more than the single HID with an external ballast. If not, you could always get an air-cooled reflector.
 
Im growing #1 Buddha. ive never heard of it but its all i could find so i got it. Also, If a seed is cracked does that mean it wont grow
 
Ya a cracked seed before/after germination. If you have germinated and it cracked that's good. Just get it in some soil or RW. Ummm.... If it was cracked when you got 'em chances are it won't grow. If you bought them online. You may be able to get free seeds with a future purchase or something.
 
I'd suggest HID's but so would a lot of ppl. Truth is yes you can make it with CFLs. You might want to change the color spectrum, once flowering is induced tho.
 
cr8z13 said:
skip the cfl's and go with a 400w mh and/or hps. Should only set you back around $120. Besides, something tells me that running 4 100w cfl's will heat up your grow space more than the single hid with an external ballast. If not, you could always get an air-cooled reflector.
Click to expand...
i use 3 150 watt cfl 6 100 watt cfl and 10 4 foot tubes in a closet maybe 4x7x6 and i do just fine
 
Youll have less heat and twice the light if you just get a 400 watt HPS light instead. your yield should double over CFL.

HPS is 50% more efficient than Fluoro lights. Highly recommended
 
ill even admit (being someone who decided to initially go for an all-cfl grow) that once i added even a relatively low wattage hps my plants took off and bulked up. heat management is not very hard. if AT ALL possible look into a hps light instead of cfls, or a combination of both.
 
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