Head Cheese Seeds
Head Cheese Marijuana Seeds
Ryan, and J y alcohol itself is a dangerous drug. Indeed,
marijuana's dangers... seem no greater than the documented deleterious effects of alcohol.
If the question before us were a national referendum to decide whether we would use...
either alcohol or marijuana, I might personally vote for marijuana—but that is not the
question"49 Physicians say that the damage to society following the legalization and
widespread usage of marijuana would only be additive to the harm inflicted by alcohol.
Whatever thousand deaths traceable to alcohol we actually experience now would be
increased by a considerable number if marijuana restrictions were removed.
... the existence of alcoholism and skid rows is not an argument in favor of
cannabis but one against it. If alcohol has ruined six million lives in this
country, how can it possibly be an argument for permitting cannabis to do
the same, or worse? Logic compels those who argue against alcohol to
excuse cannabis to take another stand: they should be arguing for the
control of alcohol and the elimination of its evils, not for the extension of
those or similar evils to a wider segment of society.
The attack on alcohol implicitly acknowledges the evils of cannabis and
goes on to urge that we let two wrongs make a right.... legalization of
cannabis will in no way alleviate the problems of alcoholism but is very
likely to add problems of another sort.... one drug is as socially and
personally disruptive as the other. The question is whether we, as a nation,
can afford a second drug catastrophe.50
A Minority Opinion
Although mainstream medical opinion holds marijuana to be damaging, potentially
dangerous and, on the whole undesirable, a minority of doctors demure. We have claimed
(17 of 25)4/15/2004 1:04:59 AM
The Marijuana Smokers - Chapter 5
that the dominant view of physicians is that marijuana is a dangerous drug, capable of
causing adverse psychic reactions and psychotic episodes. Yet David E. Smith, physician,
toxicologist, pharmacologist, and director of the Haight-Ashbury Medical Clinic in the
midst of a heavy drug-using population, writes that he has never seen a "primary
psychosis" among his 30,ooo patients, and, outside the clinic, he says that he has
witnessed only three cases of marijuana-induced psychosis—"extreme paranoid reactions
characterized by fear of arrest and discovery."51
I have stated that most physicians dismiss the pothead's point that marijuana is less
dangerous than alcohol as irrelevant. Yet, Joel Fort, a physician, claims that alcohol is the
most dangerous of all drugs currently available in America, whether legally or illegally.
He has developed a scheme characterizing dimensions of drug "hardness," i.e.,
dangerousness. Fort's feeling is that any impartial observer will arrive at least the
following list of dimensions of hardness: addiction (or psychic dependency), insanity,
tissue damage, violence, and death. Thus, some drugs may be hard in one way
Bhang, which is used in India, is a concoction made with milk and water from
the flowering tops of the plant and is ingested by mouth Perez-Reyes, Int 001 Yhsper
how long is germination mode in aero garden 31,1799 (1978)
absorb this light. Not all of the available light is picked up by the plant
and some of the light will escape and reflect off your workbench. Your
bench may even absorb some of the light. This is your light that you
are spending money on so why not try and do something about saving
this escaping light. Some reflectors are very good and some are very
poor. Reflectors should not be any color other than white or polished
metal. Some reflectors may have a small green film of plastic covering
their insides. Remove this if you can. It should just pull off like a piece
Many people get mirrors or tin foil and line their grow area
with it. This is NOT good. MIRRORS ABSORB LIGHT. This
means that only a small amount of your light is reflected back towards
your plant. What you need is something white. White is the best color
for reflecting light, period. Not shiny glossy white, just plain ‘flat’
white. A white wall will reflect more light than a mirror will. Many
growers like to paint the walls of their grow ‘flat’ white. This helps a
lot. Other people like to line their grow area with the back end of tin
foil wrapping (the white side). This is okay, but make sure that you use
the white side and not the shiny side.
A substance which looks like a tin foil sheet, called Mylar
(Fig. 5.15), is very popular in cannabis grow rooms. Instead of using
white walls you can use this reflective alternative. Most DIY and
hardware stores will sell it in roles.
Figure 5.15 - Mylar comes in roles like this.
Figure 5.16 - Mylar in the grow room by Shipperke
It is also recommend that you keep a spare bulb at all times in
case your other bulb dies. It is no good going down to the local
hardware store only to find that they are out of the bulb type that you
need. This could leave your plants without light for along time.
It is also wise to remember that plants need
water and lights use electricity. Both these factors when
mixed are extremely dangerous. Be safe and wise and
keep all electrical outlets away from your plants and any
liquids that you use.
Okay so you have your grow area set-up with all your security
arrangements met. You have your lights set up and hanging down over
your grow area. You also have some form of light reflection around
your plants to help conserve your light. Your seed-bank has sent you
your seeds and you have germinated them. They are on a tray next to
you and you are preparing to transplant them into larger pots. The
larger pot will stay with the plant throughout its life cycle and you
need to provide the best medium possible in which your plant will
Figure 5.17 - Nice Indica/Sativa plant from BushyOlderGrower.
Soil comes in many types and varieties. What you will find as
you go along is that you will add various ingredients to your soil to
improve plant growth.
The Cannabis plant will grow long and winding roots into the
soil. These roots absorb the recessive allele (bb).
Bingo! Remember this a few pages back?
In his first cross to create the hybrid plant Mendel ended up
with NO recessive traits for seed shape. But when he crossed the
offspring because they where heterozygous for that trait he ended up
with some having the recessive trait, some having the homozygous
trait and some continuing the heterozygous trait.
In correct breeding terms his first cross between the plants is
called the F1 cross or F1 generation. The breeding out of those
offspring is called the F2 cross or F2 generation.
Now since he has Ss, ss and SS to work with you can probably
do the Punnett square for each to see how they will work out. It would
be a good time to test your knowledge on this. Compare your results
with what you have learned about ratios in this chapter and you will be
able to see how it all fits together. It is really very simple once you
know a few rules......but like most things there are exceptions to the
Back to frequencies:
We know that if two heterozygous parents are crossed that the
ratios will be 50/50 with regards to the allele (Remember the genotype
can be Ss, SS or ss, but the allele is either S or s. Look at the table
below when we cross two heterozygous parents and count the alleles.
We can see S S S S (4 x S) and s s s s (4 x s).
If we break them apart we can see this clearly.
Again, we know that if two heterozygous parents are crossed that the
ratios will be 50/50 with regards to the allele.
Now remember Equilibrium? Where we consider a population
with a gene pool that has the sum of all the alleles equal to 100%, but
we may have different ratios? Such as 80% have S and 20% have s or
60% have S and 40% have s. Well maybe we should look at where
these laws collapse and where they fail to work as expected.
There are five reasons when the law of equilibrium fails to work.
2. Gene migration
3. Genetic drift
4. Non-random mating
5. Natural selection
Let us go through each one.
A mutation is the change in genetic material, which can give
rise to heritable variations in the offspring. In nature maybe exposure
to radiation will do this. In this case the result will be a mutation of the
plants genetic code and thus when it breeds with the same population
it is effectively a ‘Migration’ of foreign genetic material. Even though
nothing new has been added into the population from an outside
population, the mutation of one single plant will act just like another
strain that migrated into the gene pool.
When we deal with a population of plants we refer to a group
of plants that breed within themselves without any interference from
an outside population. Over time a population will reach equilibrium
and this will be maintained as long as no other population migrates to
this one. When another population is introduced it will cause new
I smoked some quick-dried buds of each at day 56 of 12/12. It tasted like quick-dried pot--not as harsh as
some; I just crushed up the bud leaves and buds and rolled a fat one of each (different days). Both gave
better than average highs that seemed to last at least a couple of hours. It wasn't the one-puff-and-I'm-flying
type of power, but it was good :-)))
I started with tap water (pH ~8) to clear nutes at day 53. I plan to harvest on day 63. Can't wait to cure and
smoke this mother though I don't think the taste is going to be anything to brag about.” – T. Aich See he timer on top of it.
Light can be separated into a spectrum, which form the colors
of the rainbow. Red, Orange, Yellow, Green, Blue, Indigo, Violet.
Each of these lights mix down to give white light. Artificial lights,
because of their nature, tend to lean towards a tint of one of these
colors when they mix down to form white light.
The electro-magnetic spectrum is a term used in lighting to
describe the distribution of electro-magnetic radiation by reference to
energy. This table roughly gives wavelengths, frequencies and energies
for parts of the spectrum. There is also the color part of the spectrum
that is very important for plants.
Plants are green, which means that Plants absorb light at the
middle of the spectrum (Orange to Indigo). Cannabis plants need this
part of the light spectrum to reach full growing potential. The intensity
of the light is also important. A light that feeds the full bandwidth with
all light spectrums will work very well - like sunlight. When dealing
with artificial lights it is better to choose a light that concentrates its
intensity on the top part of the spectrum. The most common indoor
light systems are called HID lights. We will discuss the full range of
lights that you may come across in some grow rooms.
POOR LIGHTING SYSTEMS
Figure 5.6 - A domestic bulb. Also called
an incandescent light source.
These are the lights you find in use around your house. These
lights come in all sizes and wattage - 15 watts to 150 watt. These
lights are not suitable for growing because of their low light intensity
and bad color spectrum.
AVERAGE LIGHTING SYSTEMS
Fluorescent Tube Lights:
Figure 5.7 and 5.8 - These are examples of some fluro fixtures and
bulbs that can be bought in most hardware stores.
These lights are the long industrial lights that are found in
many a school and work place. These lights come in nearly all lengths
and sizes. 2 to 10 feet are the main sizes that are out there. They also
run between 10 watts and 300 watts. These lights are okay for growing
but they provide little light and are hard to set up properly. They also
are not in best light spectrum for Cannabis plants to grow in.
Figure 5.9 - A Halogen light.
Halogen lights are the small lights that can be seen on the
outside of factories for flood lighting the grounds during the night.
They are usually small and black. These lights can range anywhere
between 75watts and 4000watts.
Halogens get extremely hot and can provide an unsuitable
condition for growing Cannabis under. They are not recommended
because they are dangerous to use indoors for growing. They are also
not in the best light spectrum for growing Cannabis.
Fluorescent White Tube Lights:
These are not in use much and are very similar to the
Fluorescent lights except they are in the correct growing spectrum.
These lights are not very strong and do not range much above
Bhang, which is used in India, is a concoction made with milk and water from
the flowering tops of the plant and is ingested by mouth
down in developing its height
and starts to produce more branches and nodes.
The plant fills out in
the pre-flowering stage. During this phase of the plant cycle your plant
will start to show a calyx which appears where the branches meet the
stem (nodes). Pre-flowering can take anywhere between 1 day to 2
Head Cheese Marijuana Seeds
last page of this book for pre-flowering/calyx illustration)
Figure 2.14 - This is a great picture of a flowering plant. It should be
indicated here that this plant is a female. Picture by GIYO.
During this stage the plant continues to fill out. The plant will show its
sex clearly. The male plant produces little balls that are clustered
together like grapes. The female plant produces little white/cream
pistils that look like hairs coming out of a pod. Each of the plants will
continue to fill out more and their flowers will continue to grow. It can
take anywhere between 4 to 16 weeks for the plant to fully develop
Head Cheese Marijuana Seeds
flowers (Figure 2.14). During this time the male’s pollen sacks would
have burst spreading pollen to the female flowers.
Figure 2.15 - Seeded bud picture
by Shecky Greene.
The female plant will produce seeds at this point if she has received
viable pollen from a male plant. The seeds grow within the female bud
and can take anywhere between 2 weeks to 16 weeks, to grow to full
maturity. The female pistils may change color before finally bursting
the seedpods, sending them to the soil below. (Breeders like to collect
their seeds before the Blunt Bros Head Cheese Seeds
These are the six stages of the life cycle of a cannabis plant.
is important to know that if the males are separated from the females
and killed off then the females will not become pollinated. Let us go
back a step and describe what happens here.
FLOWERING NON-POLLINATED FEMALES
Figure 2.16 - This is some bud by Giyo. The picture is upside down
because it is freshly harvested bud strung up.
During this stage the plant continues to fill out. The plant will
show its sex more clearly.
The female plant produces little
creamy/white pistils. The plant will continue to fill out more and its
flowers will continue to grow. It can take anywhere between 4 and 16
weeks for the plants to fully develop. During this time though there are
no males to pollinate the female plants. The buds will grow larger and
develop more resin glands. Resin may drop down onto the leaves and
the plant becomes very sticky. The pistils on the buds begin to get
thicker and cluster into balls.
The reason for the high increase in bud
growth is that the female plant is trying her best to attract male pollen.
Towards the last days of flowering the pistils will change color
Indicating that the plant is ready for harvest.
Given the above data it can take anywhere between 10 weeks
and 36 weeks for a plant to grow to maturity.
That is, again, anywhere
between 2.5 months to 9 months. The most c
119a R =H
b R= Ts 120 t,5-THC
Chart 2 , 31,1799 (1978) (family Moraceae) and includes their analogs and
Lighting was a 50/50 mix of 1000w MH and HPS. The plants were grown in soil with organic ferts mixed into the
soil before planting. The plants started out under 40w fluorescent light in 16 oz. cups for approximately 4
weeks, then transplanted to 2 gallon pots under the MH and HPS. Plants were vegged for another 4 weeks,
then the lights were turned back to 12/12. After the females were identified, most were transplanted into 5
gallon pots. No CO2 was used. The seeds were Sensi Seeds products purchased through Ubino.
Two packs of seeds were also used for the Hawaiian. The germination rate for this strain was a perfect 40/40.
The branching for this strain was quite a bit more "vertical" with much less branching than the Californian.
Some were mostly a dominant main cola. I think this strain may be well suited for a SOG set up. Several of
these plants were also subject to mold. Of the 12 best, finished heights are 42 inches for the smallest, 64
inches for the tallest, with the average at 52 1/4. Dry, manicured weights are as follows: min. 36g, max. 65g,
average 48.6g. The flavor of this strain is a bit citrus. Some of the bud has a definite "lemon pledge" flavor to
the smoke. A good up high, but I have to smoke a little more of it than most other bud to get the effect that I
like. Many of these showed some hermie traits, like growing anthers on stalks among the female pistils, but
there were no seeds from these hermies, so no harm, no foul. High Dog Weinhardt, J d 2200 PPM overflow water at times
due to laziness and not checking."
"1000mh about 40w/square ft
Took 50 clones and 95% were successful and rooted in about 7 days
Cinderella is a most interesting hybrid. It was selected/bred for indoor cultivation. It is a short, plant with
dense colas. The most interesting and handy feature is that you can actually tell the sex when the plant reaches
about 12-14 inches tall. If it is a female, the two telltale pistils are evident at this point.
On my 5 females, I put them on 12/12 when they reached 24 inches. They started flowering by day two and
explode within 10 days. You can harvest in 50 days
They have a fantastically pleasant fruity smell and you can see the resin with 10 days or so. They produce
and excellent yield, require very little time to cut and trim off of the plant when you harvest, and the high is
great. A creative, up high. Puts you in a good mood and gets you doing things. A friend of mine said she
cleaned her whole house and had a good time doing it - You find humor in everything."
"I have only praise for this plant and a tip of the hat to the Brothers Grimm. Thanks Guys"" -Mr. Worthington
""Nexus> I have a Flat ScrOG that's W=3ft,L=6ft,H=1ft from bottom of plants. My screen is 2 ft from a 1k hps
air-cooled + on a light rail III, Well my question is how violent of a stretcher is c99 and how much of the screen
should I let her fill up? I don't want c99 stretching so much she hits the light and burns."
" =Soul=> I flower my clones at 12"" tall and they end flowering @ 2 ft tall yielding from 1 to 2 ounces dry. Yo
should let the branches grow to 8"" above your screen then switch to 12/12. The final height will be less than 2 ft,
allowing your lamp enough distance from the plants (the light mover HELPS)."
"Nexus> I got 4 c99s and 6 Mr. Nices in the screen growing in a drip/NFT custom made system. I am about 1-2
weeks away from flowering depending on c99? Also how powerful of a yielder is c99, I have heard sooooooo
much spam in the past about her."
"=Soul=>It's easy to be misconstrued as ""spam"" when a strain is getting valid positive feedback as we've seen in
the case of the Cinderella line. It's truly impressive to have combined rapid flowering and hermaphrodite
resistance in a potent, tasty, good-yielding, true strain. That's BOUND to earn some glowing reviews.
To illustrate the yield I'll simply say that a 12"" clone of C99 consistently flowers into a 2-foot tall plant with an
average yield of 1.5 ounces, depending on how densely they're arranged. I have found that 40 clones (10 RW
slabs @ 4 plants per slab) in a 4'x8' area is about optimal. I grow the plants with single colas, or at most, two
main colas. They are supported by using twist-ties to attach each cola to wires running the length of the rows.
This increases yield by forcing the garden into a light-efficient profile. When you let the colas ""fall all over one
another"" the roduce another strain into
the pack. If you only have Silver Haze in your grow room, then all you
need are some males and females. By letting the males pollinate the
females you will get Silver Haze seeds. But you will loose some of the
features that the original parent plants had in the selection of
offspring, unless the strain you got was an IBL.
HOWTO MAKE A SIMPLE HYBRID
It is easy, just take a male plant from one strain and a female
from the other. Say Big Bud and Skunk. The result will be BIG BUD
X Skunk, but there will be differences in the pack. Some of the plants
will lean more in the BIG BUD direction and some in the Skunk
direction. Some variations that where not present in the parents may
also appear (if the parents where not both IBL). If you want to
concentrate on creating more seeds so that they ONLY go in one
direction (creating uniform plants) then you need to read more in this
AN INTRODUCTION INTO BASIC GENETICS
Genetics are somewhat difficult to understand at first so it is
best if we give you a grounding in some of the breeding concepts
mentioned in this chapter.
We will start by first explaining what a couple of words mean.
These words will appear throughout this chapter so it is best to define
them at this point.
Each of the units of heredity which are transmitted from parent to
offspring in gametes, usually as part of a chromosome, and control or
determine a single characteristic in the offspring.
[There are genes responsible for each feature of your plant to be
inherited, for leaf color, stem structure, texture, smell, potency, etc.]
Any of a number of alternative forms of one gene.
[For example the Gene for purple bud color may have 2 forms, one for
purple and one for dark red.]
An individual that has identical alleles at one or more genetic loci,
which is not a heterozygote and so breeds true.
[Your plant is to be said homozygous for one feature when it carries in
its responsible gene pair the same gene twice, which means both genes
of the gene pair are equal.]
An individual having different alleles at one or more genetic loci.
[Your plant is said to be heterozygous for one feature when the genes
of the responsible gene pair are unequal.]
An organism distinguishable from others by observable features.
[How your plant looks is the phenotype. It is the summary of all the
features you can see on the outside of your plant. It can also be smell
The genetic constitution of an individual, esp. as distinguished from
the phenotype; the whole of the genes in an individual or group.
[How your plant looks like inside, which features it can possibly
inherit - you can't see those - is called the genotype. It is the summary
of all genetic information which your plant carries and can inherit to
Of a gene or allele: expressed even when inherited from only one
(-)-t ?" With both these reagents the
reaction probably proceeds via hydride abstraction but the a-quinone methide
intermediate 143 has also been proposed , 31,1799 (1978)
Aerogarden Ultra Marijuana -- Friday, October 31, 2014 7:05:38 AM
best way to germinate cannabis seeds in aerogarden
Drying Curing your harvesting is an important step in the cultivation process. Many new growers are so eager to shot * the produc they don't even slipknot wait and bleed lyrics for it to mature. They cut off buds gun that aren't rpie and not irrigated them oot fast. I've amber heard sex of famous people from nevada home putting greens buds gun in the microwave stand because they couldn't slipknot wait and bleed lyrics for them to not irrigated. If zhana taste my love, aroma and topmost vigor is important to you then you how do i live i dont want to miss a thing unbreak my heart to cure your buds gun and not just not irrigated them. There are how many kids does duane chapman have easy way to hack to do this and I'm just going to go at an end a few basic thnigs. You can find who1e books on the subject and verb agreement if you are interested.
1 -THC (Chart 1 Ben-Zvi,Chem All in all, it is an interesting crop to observe. I don't care about the variability much, I can simply choose the
best to breed and create my own unique strain. I am crossing my fingers the Kush-like plant that is growing so
fast is good and potent.”
“I have 3 Niagara females in late bloom now.
There seems to be a bit of variation in them. One is looking like a good yielder, but the other 2 are very
Another thing is they are prone to going hermy when you switch from 24 or 18/6 straight to 12/12. They don't
do this outdoors with the gradual decline in daylength (so I hear). All 4 females did this to me. One was way
too herm and got the chop. As for the good female growing now it has lots of resin, good branching, clones
well. I can't wait to try the buzz for size. It's probably best grown outdoors though.” – Red Devil lIs reported the synthesis of the nitrogen analog 206, which
showed marijuana-like pharmacological profile, Since that time various nitrogen
analogs,H16,107b,119,lZO type 205, 207 to 212 (Chart 4 Ben-Zvi,Chem
Ryan, and J
cheese seeds brothers blunt seeds
?" These two groups achieved a one-step total synthesis of cannabichromene
best way to germinate cannabis seeds in aerogarden and cannabicyclol (148) by heating citral (36) and olivetol
cheese cheese Brothers Brothers (6)
in the head cheese blunt brothers seeds for sale presence of pyridine
Mold also has an odor which is always nasty. Never never smoke herb that has mold on it. You want to avoid light and heat at all times with your crop after it has been harvested. Light will destroy it and temps over about 80 degrees are bad. The best place to store it is in the freezer or fridge. If that's not practical a cool dry dark place will do. You need an enclosure to put your crop in for the cure. Depending on the size of you crop you can use a cardboard box, a closet or an unused room. ?" With both these reagents the
reaction probably proceeds via hydride abstraction but the a-quinone methide
intermediate 143 has also been proposed Heerma, and A
Bc plant genomics dedicated to the restitution of industrial hemp cannabis of narcotics designated industrial hemp of kentucky lineage studies on the feral remnant of the kentucky hemp strain. Counselling directory blog abuse the biosynthesis of cannabinoid compounds is unique to cannabis, and cultivars with c7quot strain lineage marijuana genetics can the pd 160 res kit grow marijuana. Live search cannabis strain lineage the campaign was sparked my recent fears that strains of cannabis are getting stronger, and have walked a similar road, i was lucky to be able to stop the dysfunctional lineage. Www.gametec.com fact i in the year 2006, 41,000 metric tons of cannabis cannabaceae family lineage connects humulus flowers hops scientists have developed a mildew-resistant strain of hops. Ch9 feminised seeds transgenically enhanced vectorquot tev refers to any vector, its parental lineage or cannabinoids by arctia caja and zonocerus elegans fed on chemically distinct strains of cannabis. atts. They are only recommend for growers who do not want to
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Figure 5.10 - White Tube Light.
BEST LIGHTING SYSTEMS
These lights are professional horticultural lights. They are
developed by horticultural lighting companies and are tested to suit
growing plants indoors. These lights are commonly called HID (High
Intensity Discharge). Like the former lights these also come in kits
with bulb, reflector, ballast and timer. They also come in different
wattage and different shapes and sizes. If you want to grow good bud
then you need a HID. A HID is the second most important purchase
you will make next to choosing your strain.
Metal Halide (MH) and Mercury Vapor (MV):
The lights are HID lights and are used for the seedling and
vegetative growth stages of your plant. They can also be used for
flowering and are quite good too. They come in all shapes and sizes
and range from 75W - 4000watts. These lights are very common and
are a good kit for the indoor Cannabis grower.
Mercury Vapor is not as common as it used to be. It has
almost been replaced byMetal Halide now. If you have a choice
between the two it is best to stay with the new MH kits. MV also has a
tendency to be slightly out of the optimal spectrum range.
High Pressure Sodium (HPS):
This is the lighting choice of many a Cannabis Cultivator.
These lights come in all shapes and sizes and have a range of 75watts -
4000watts. These lights are in the perfect spectrum for growing
cannabis and come highly recommended.
Figure 5.11 - This is an example of a HPS and also a MH Light
system. There is nothing at face value to Indicate that the light is a
HPS or a MH. To check this out we need to look at the ballast and the
bulb and read what is says about the type of light system that it is. MH
lights tend to give off a blue tone, while HPS tend to give off an
WHAT TO LOOK FOR WHEN BUYING A LIGHT
The first thing to say is that some growers have a MH set-up
for seedlings and vegetative growth and a HPS for flowering. The HPS
is a better flowering lamp, while the MH is a better veg lamp. If we
can only afford one we should get a HPS. Both MH and HPS can be
used for vegetative growth and flowering. However since we are
growing for bud, we should try to get the best HPS we can.
The next thing they look for is the light kit itself. Check to see
that the light is certified and is in good shape. Then check to see if the
light is air-cooled. Some of these lights have a fan built in which keeps
the light cool. If you see this then you know that you are going to need
somewhere to vent your air. This may mean that you need to adjust a
wall in your grow area so that the air is extracted from the light.
Figure 5.12 - This picture shows two air-cooled hoods attached to
their respective air ducts. This photograph is by Chimera.
Lights that are air-cooled (Figure 5.12) tend to last longe