Growing Tip:
Basic info on fluorescent lighting
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Grower Added: Bunny Love Last Update by: Factness Viewed: 185 times
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Cannabis Fact Contributed by:removed user 08/18/04
Cannabis Tip Submitted:July 6, 2011
This is a compilation of basic information on fluorescent
lighting that I have gathered over a period of several
months.
artwork provided by:Dixie Sonic
What is a fluorescent light?
A fluorescent light is made up of a glass tube coated with
phosphor, which is filled with a mixture of gases. When
electrical current is applied, it "excites" the gases,
causing the tube to glow brightly. ie:to "fluores".
Why do fluorescent lights have different
colors?
The tubing is coated with phosphor, which will determine
the color of the bulb.
 What
diameters of fluorescent tubes are available?These are
the most widely used diameter fluorescent tube size is T-5,
T-8 T-10, T-12. Bulb sizes (meaning diameters) vary from
.25 up to 1.5 inch, the larger in diameter the larger the
fluorescent.
What length is most used?
There is a wide variety of lengths from 6 to 96 inch, the
most widely used is a 48 inch fixture.
What wattage is there to use?
Fluorescents come in a wide range of watts any where from 4
to 214 watts that I have found.
Why does my bulb French Vanillaer?
Fluorescent tubes are rated by hours, these hours vary by
the manufacture, the most common rated hours are from
6000-22011 hrs. The bulb French Vanillaering can also be caused by a
poorly seated tube (poor receptacle contacts), a ballast or
starter going bad or a tube wearing out such as shown in
the photograph.
How do I dispose of these lights when they are
broke?
Although commercially generated fluorescent lights are
required by law, to be handled separately from general
trash. Residents are allowed to dispose of them with the
rest of their household garbage.
Where can I purchase fluorescent tubes, and how much do
they cost?
Fluorescents can be purchased at all home improvement
centers, hardware stores, and most pet supply stores or you
can go to internet sites such as http://www.1000bulbs.com/. The cost may
vary depending were you reside, but the typical cost is a
few dollar's for a pack of two bulbs.
Who manufactures these lights?
These are the most reliable companies on the market today:
Sylvania, Westinghouse, General Electric.
What are lumens?
Lumens are the unit of measure that state the amount of
light output produced by a light source. The higher the
lumens, the greater the light output. The standard
fluorescent tube should produce at least (3000-3300)
lumens.
How can I optimize the light output?
You can help reflect the light out of each tube, by using
metal foil tape as a reflector, attached directly to the
tube as shown in this Fact. click
here Using clear plastic safety sleeves over the
fluorescent tubes allows you to recycle the metal foil
reflective tape.
What is a Kelvin scale?
One way light is measured is on a Kelvin scale. A Kelvin
scale expresses the exact color the bulb emits. Bulbs in
the range of 2700 to 6500 on a Kelvin scale is ideal for
growing marijuana. Plants respond not only to the quantity
of light, but also the quality.
* artwork provided by:Dixie Sonic (click chart to
enlarge)
What color spectrums are available in fluorescent
bulbs?
Fluorescent bulbs have the most range of spectrums than any
other bulb. The spectrum comes in various spectrums,
determined by the type of phosphor with which the bulb is
coated. The following fluorescent types are as listed,
along with what they may accomplish for you.
- Full spectrum fluorescent bulbs have all the colors
of the Kelvin scale. This bulb is good for vegetation
stage. Note:This spectrum fluorescent is used in
hospitals nationwide in helping people with
"depression".
- Wide spectrum fluorescent bulbs will restrict
development of side branching, helps plants mature
faster. This fluorescent is high in the red, orange and
yellow color range. In fact, this fluorescent is the
highest than all other fluorescent bulbs. As a matter of
fact, this fluorescent is much like an HPS color range,
which makes it the best all around choice for flowering
stage.
- Daylight spectrum fluorescent bulbs are very high (if
not the highest) in the blue range on the Kelvin scale.
This fluorescent promotes an arctic blue look. I suggest
this fluorescent during vegetation stage.
- Cool spectrum fluorescent bulbs will promote multiple
side growth, nice green foliage. This fluorescent is high
in the blue range, giving off a bright white appearance.
I suggest this fluorescent for vegetation stage.
- Warm spectrum fluorescent, will promote extra thick
stems and branches, and will give you about 5% denser
buds than other spectrums. This fluorescent is high in
the red range on the Kelvin scale.
- In the old school of fluorescent growing, an even mix
of warm white and cool white tubes has been proven to be
the best combination of light spectrums to use for
flowering stage. If wide spectrum bulbs are unavailable
in your area, then this is the combo to use.
Do fluorescent tubes need air circulation?
Fluorescent tubes do get warm, but not if they have
adequate air circulation. A simple fan blowing over the
fixtures as shown, will help a great deal to cool the
tubes.
If its done properly, any stray foliage that comes in
contact with the tubes will not be harmed.
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Last cannabis grow log changed: 04:55 - Jul 12,
2011
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Answer © 2011 ECO GREEN
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