how many?
- Thread starter Blazzah
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Vote 2 Legalize Marijuana
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150-175 watt lights are primarily used for seedlings or cuttings, though they can be used for growing plants to maturity if the plants are kept short. 250 watt systems are good for areas up to 2.5' square at the most, as long as the plants don't get taller than about 2'. 400 watt systems cover a primary area of about 3' x 3', or up to 4' x 4' max. 600 watt systems cover a primary area of about 4' x 4', or up to 5' x 5' max. 1000 watt systems cover from 4' x 6' up to 5' x 7'. The taller you plan to grow your plants, the higher the wattage needed. This is because the light intensity diminishes by 50% for every foot you move away from the bulb. So, if your plants reach 4' tall, then the leaves at the bottom of the plant are receiving only around 12% of the light that the top of the plant is getting!
Depending on the grow method you plan to use also will determin how many plants. For example, when I do my SOG grow method (different than others) in rockwool cubes I can grow around 25-50 plants. But if I grow using the standard grow methods I can grow about 9-12 plants.
Hope this was some help. Oh, and by the way i'm supposed to send all newbies here ---> How To Grow Marijuana Good luck with your grow!
Depending on the grow method you plan to use also will determin how many plants. For example, when I do my SOG grow method (different than others) in rockwool cubes I can grow around 25-50 plants. But if I grow using the standard grow methods I can grow about 9-12 plants.
Hope this was some help. Oh, and by the way i'm supposed to send all newbies here ---> How To Grow Marijuana Good luck with your grow!
Vote 2 Legalize Marijuana
Well-Known Member
This forum is actually a big help for me as well. I put my book on hold because of the wifes illness, but after visiting and being apart of this forum, I now have some new topics to add to my book. So I should be thanking all of you! Thank You!
MajoR_TokE
Well-Known Member
That's a 1000w HPS im guessing?
Secret green giant
Active Member
150-175 watt lights are primarily used for seedlings or cuttings, though they can be used for growing plants to maturity if the plants are kept short. 250 watt systems are good for areas up to 2.5' square at the most, as long as the plants don't get taller than about 2'. 400 watt systems cover a primary area of about 3' x 3', or up to 4' x 4' max. 600 watt systems cover a primary area of about 4' x 4', or up to 5' x 5' max. 1000 watt systems cover from 4' x 6' up to 5' x 7'. The taller you plan to grow your plants, the higher the wattage needed. This is because the light intensity diminishes by 50% for every foot you move away from the bulb. So, if your plants reach 4' tall, then the leaves at the bottom of the plant are receiving only around 12% of the light that the top of the plant is getting!
Depending on the grow method you plan to use also will determin how many plants. For example, when I do my SOG grow method (different than others) in rockwool cubes I can grow around 25-50 plants. But if I grow using the standard grow methods I can grow about 9-12 plants.
Hope this was some help. Oh, and by the way i'm supposed to send all newbies here ---> How To Grow Marijuana Good luck with your grow!
How about 15 to 20 plants with a 600watt HPS light with sylvania hight intensity bulb?
will i be able to grow 15 to 20 plants?
ablazed blunt
Well-Known Member
It all depends on the size of the plant. Some plants get bigger then others.
ablazed blunt
Well-Known Member
I would go with about more then just 2 600w lamps if I had them and the heat wasn't a problem.
I'm useing a 1 400w hps right now so I might but another one.
I'm useing a 1 400w hps right now so I might but another one.