Sir Walter Raleigh
Well-Known Member
yes
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is a 600 watt too much for this???
- Thread starter True Stoner
- Start date
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Sir Walter Raleigh
Well-Known Member
have you thought about co2??
high times wrote this in Jan. of this year
The general rule is pretty basic – the more light your plants receive the more CO2 they will need. When you supply your plants with light, you are really feeding them subatomic particles called photons. Technically speaking, it takes 10 photons to create enough electrons to supply the energy needed to split one CO2 molecule and form sugars for the plant. If there are millions, or even billions, of photons hitting your plants and not enough CO2 to react with them, these photons will be deflected, unused and ultimately wasted. This is bad news for growers who spend loads of money on high-powered lamps and electric bills and then get nothing in return.
To simplify things, let’s start with what not to do. Most expert growers will warn that CO2 levels of over 3,000 parts-per-million (PPM) are dangerous in an indoor grow operation. In the noonday sunlight, with around 5,000 lumens per square foot, a mature plant can process about 2,000 PPM of CO2. Some larger greenhouses may push these limits, but for home growing, this is not a good idea. In reality though, it is the PAR (photosynthetically active radiation) value that affects what your CO2 levels can be, not lumens. This is because PAR values are a more precise measurement of light that is usable by plants. This information is useful in artificial lighting as it focuses on the more specific spectral wavelengths that plants use best.
Still, your best gauge for how much CO2 to use should depend mostly on your light intensity. Try to get a good reading on your growroom’s lux using a light meter from your local hydro shop. Or, if need be, you can go by the lumen output of your lighting system. Assuming optimal temps 0f 75-80 F, you can figure that with 5,000 lumens per sq. foot your CO2 may range from 1500-2000 PPM. At 1,000 lumens per sq. foot, use from 350-450 PPM. In the end, a good rule for average range for a standard indoor growroom with CO2 enrichment is to use approximately 400 PPM for every 1,000 lumens per sq. foot.
high times wrote this in Jan. of this year
The general rule is pretty basic – the more light your plants receive the more CO2 they will need. When you supply your plants with light, you are really feeding them subatomic particles called photons. Technically speaking, it takes 10 photons to create enough electrons to supply the energy needed to split one CO2 molecule and form sugars for the plant. If there are millions, or even billions, of photons hitting your plants and not enough CO2 to react with them, these photons will be deflected, unused and ultimately wasted. This is bad news for growers who spend loads of money on high-powered lamps and electric bills and then get nothing in return.
To simplify things, let’s start with what not to do. Most expert growers will warn that CO2 levels of over 3,000 parts-per-million (PPM) are dangerous in an indoor grow operation. In the noonday sunlight, with around 5,000 lumens per square foot, a mature plant can process about 2,000 PPM of CO2. Some larger greenhouses may push these limits, but for home growing, this is not a good idea. In reality though, it is the PAR (photosynthetically active radiation) value that affects what your CO2 levels can be, not lumens. This is because PAR values are a more precise measurement of light that is usable by plants. This information is useful in artificial lighting as it focuses on the more specific spectral wavelengths that plants use best.
Still, your best gauge for how much CO2 to use should depend mostly on your light intensity. Try to get a good reading on your growroom’s lux using a light meter from your local hydro shop. Or, if need be, you can go by the lumen output of your lighting system. Assuming optimal temps 0f 75-80 F, you can figure that with 5,000 lumens per sq. foot your CO2 may range from 1500-2000 PPM. At 1,000 lumens per sq. foot, use from 350-450 PPM. In the end, a good rule for average range for a standard indoor growroom with CO2 enrichment is to use approximately 400 PPM for every 1,000 lumens per sq. foot.
True Stoner
Active Member
wow thanks for the info. I may also include a CO2 unit. When would i need to use it/start using it?? If CO2 leaks out just say by a missed crack and im sleepin next to it, is the gas dangerous to inhale???
True Stoner
Active Member
so if i got lets say a 40 watt cfl and got a light strip that holds more then one bulb! What is that called as i cant find it online. I need a strip of lets say 4 sockets for each!!
True Stoner
Active Member
The 600w HPS will be enough, don't waste electricity and risk the plants touching the CFLs and burning for a while. As long as you have decent airflow and its getting air from outside the small area, you'll have enough co2. You'll have much bigger worries like nutrients/PH/bugs/mold/root bound... CO2 supplementation is only for big grows where they have everything down perfect. You won't need it, so don't bother wasting the cash on it. Plus you risk killing your plants with too much.
True Stoner
Active Member
Thanks for the info buddy!!
captain chronizzle
Well-Known Member
this what im looking for. It will hold 3 40watt CFL's and ill have 6 of these in my room with a 600 watt HPS!! They even come with 4 sockets or 6!! I may see!!
go to lowes or home depot, thats a light bar for a bathroom, and yes they come in up to 6 sockets.
your grow cupboard sounds ok,@ the end of the day you can only work with what you've got,just make sure you've got your ventilation sorted.I've got a similiar set up myself just a little bit bigger and i keep my temp and humidity perfect with a ecotechnics fan-heat controller the best bit of kit i invested in,my temps an humidity where a nightmare b4 that,so good luck.
peace out.
peace out.
mofizzle415
Active Member
Id run a 600 watty.... if you can disipate that extra 200 watts of heats you'll be very happy....