Summary: LED Grow Lights - Recently Updated Pages
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Natural sunshine is essential in growing
vegetation, to simulate this,
grow lights are utilized in hydroponics which is
the growing of crops without any soil. Numerous ranges of color
spectrum are centered by these grow lights that are useful to plant
growth as these lights usually do not totally duplicate
sunshine.
Understanding the variations in grow lights and just how they
perform demands a little understanding concerning the spectrum of
light and color. Scientifically, color is measured as "temperature"
in the same way to heat, except that larger color temperatures
appear "much cooler", and lower temperatures appear "hotter."
Usually, color temperature is measured in degrees Kelvin (K). (Once
again, actual heat just isn't being measured here.) In easier
terms, so as to enhance plant foliage, a greater temperature that
ought to be cooler are inclined toward blue on the spectrum which
is 5000K and above, whilst to promote flowering/budding and
vertical growth, a lower temperature that is supposed to be warmer
tend in the direction of orange-red that is 2700K and below. To
manage to balance the growth of crops, a lighting mixture giving
off both cool and warm color needs to be employed due to the fact
natural sunshine has a extensive spectrum heavy on the blue range
but also contains orange-red.
Grow lights normally fall into four categories:
High Intensity Discharge (HID), fluorescent, incandescent and LED.
The following would be the most typical forms of grow lights:
METAL HALIDE (MH)
It's an HID bulb which highlights the blue end of the spectrum
(which range from 2700-5500K), and is wonderful for leafy plant
growth. Should you only have one sort of grow light, this is the
best option, as it is closest to natural sunlight.
HIGH PRESSURE SODIUM (HPS)
This is an HID bulb that provides orange-red color temperatures
around 2200K, excellent for blooming and not good for foliage. This
bulb is excellent if used as a supplement to a natural sunlight or
even in conjunction with MH bulbs which is not excellent to make
use of on its own.
FLUORESCENT BULBS
Fluorescents are available in many intensities and color ranges.
Temperatures that are warmer or cooler are that of a common
fluorescent or high-output fluorescents are available in, it may
also be combined. Regular bulbs can be placed closer to the crops
because they give off low heat. Fluorescents are usually cheaper
and lower, however when employed effectively, they are able to come
in close proximity to HID bulbs in terms of success.
INCANDESCENT BULBS
Incandescents are the the very least popular selection simply
because they burn hot, can't be positioned in close proximity to
crops, and they are the least comparable to day light. However,
knowing what you really are doing, these can be used as a
supplement lighting for individual plants as you'll find color
corrected incandescents offered in the market recently.
LED LIGHTS
The modern grow light choice offered. These kinds of lights can be
put close to the crops because these produce almost no heat but are
said to cover the full color spectrum for plants, these LED
lighting is lately created. Therefore, this may not be one of the
most cost-effective choice considering that they're actually costly
which is nevertheless debatable regardless of whether LED produces
greater results than
grow lights which are traditional.
Date Published: Apr 13, 2010 - 5:05 am
Hydroponic lights, or grow lights as they're
usually called, come in many varieties and can be utilized in
combination with one another to achieve the best results. If you're
using natural sunlight in any way, the grow lights shall be used to
supplement natural light; if you're using solely artificial
lighting, your setup will naturally be a tad more elaborate.
It's important to understand the principle of color temperature and
its effect on plant life if you're setting up hydroponic lighting.
Not to be confused with heat/cold, color temperature refers to the
color spectrum of light, and is measured in degrees Kelvin. Blue
light - at about 6000K - is perceived as the coolest while
red-orange light - at the 2000K range - is considered the warmest.
Generally speaking, full-vegetation plants do well with the darker
blue spectrum (closest to normal sunlight at 6000K), while
fruit/flowering plants thrive with slightly warmer color
temperatures (4800K). Also, know that plants draw from the
red-orange part of the spectrum in the reproductive stage. In an
optimal lighting setup, your
hydroponic lights shall cover a blend of these
color temperatures best suited for the plants you are growing.
The most common kind of bulb utilized in hydroponic lighting is the
Metal Halide (MH) bulb. Since this High-Intensity Discharge (HID)
light mimics direct sunlight the most - leaning more towards the
blues - this is most preferred in any growing situation. Of course,
leafy, full-vegetation plants thrive with MH bulbs.
The High Pressure Sodium (HPS) bulb is yet another HID bulb. This
bulb tends to produce the orange-red light approximately on the
2200K mark, and is good for flowering plants, but not very good in
itself as an artificial lighting substitute. It should generally be
used in combination with natural sunlight or other artificial
bulbs.
Flourescent lighting is your 3rd alternative. The advantage with
fluorescents is that although they're less intense, they are less
costly, can be placed close to the plants because of their low
emission of heat, and in combination with one another, can cover
the color temperature spectrum fairly well.
Other kinds of grow lights include incandescent lighting, which can
be problematic because they're not as intense and get too warm to
be placed close to the plants; and more recently, LED lights, which
claim to cover the spectrum just as fine and emit almost no heat,
but are a bit expensive and not as cost-effective as the other
options.
As shown above, you actually have a wide range of
hydroponic lights from which to choose from. The
combination that is ideal for your garden can be determined with
your retailer.
Date Published: Dec 23, 2009 - 11:40 pm
In hydroponics, natural sunlight is replaced by
specialized "grow lights" which are designed to emit the spectrum
that the plant needs most. What type of
grow light (or combination of grow lights) you
need will depend largely on what plants you are growing, and what
plant behavior you are trying to elicit.
First, it is essential to have a background about color temperature
in order to fully comprehend the concept of grow lights. When
referring to "temperature" with plant lighting, we're not talking
about heat, but about color. Just as in other applications of heat
and cold, the color spectrum is measured in degrees Kelvin - but
the distinction is, higher temperatures are considered "cooler,"
and lower ones, "warmer." The temperatures ranging above 5000K most
resemble the intensity and color of sunlight, and are blue on the
color spectrum. The yellows, oranges and reds are actually lower
temperatures, 2700K and below. The importance of this spectrum is
that flowering and fruiting plants tend to do better under slightly
cooler color temperatures usually around 4800K, which is still
considered in the "blue" zone but leafy vegetation does better in
the 6000K range (essentially full sunlight). Furthermore, when
plants are flowering and reproducing, hey're drawing more from the
orange-red color temperatures, about 2700K. With this, it is
understandable that the right grow light is very important to a
plant's well-being.
The three most common types of
grow light used in hydroponic gardens are
designed toward the color temperatures most needed by plant life.
One of the most popular kinds is the Metal Halide bulb. A
High-Intensity Discharge (HID) bulb, Metal Halide bulbs range from
2700-5500K and are the closest to true sunlight that money can buy.
These are particularly great for leafy plants. The High Pressure
Sodium bulb (also another HID bulb) is your second option. These
bulbs emit the orange-red part of the spectrum (around 2200K) and
are most suited for flowering, but do not encourage full foliage.
They're not generally used by themselves, but in combination with
other bulbs and/or natural light. Of course, don't take your focus
away from the 3rd most common bulb - the fluorescent, both high-
and low-output. Even if they're not as intense as the HID bulbs,
they remain a wise choice especially because of the fact that since
they emit so little heat, they can be placed close to the
plants.
At present, there are already available LED bulbs that promise to
cover the full range o the color spectrum, without the issue on
heat. However, they're quite expensive, and in some circles, it's
believed that you can get the same results with the lesser
expensive fluorescent bulbs.
To conclude, many hydroponic growing rooms today use a combination
of different bulbs for the various stages of plant growth. Refer to
your retailer for the best
grow light combination that can answer your
needs.
Date Published: Dec 23, 2009 - 8:49 am
While natural light is essential for plant
growth in hydroponic gardening, it may well be substituted by
artificial lighting.
Grow lights, as they are referred to, are
effective in replacing daylight for plant growth. Standard
incandescent lights do not work well for this purpose because
plants need a certain intensity of light for the different stages
of growth. (Consider that you need to emulate sunlight as much as
possible.) Usually, hydroponic plants do well with High Intensity
Discharge (HID) bulbs, two of which are discussed below. Along with
the two HID bulbs, here are the kinds of bulbs most commonly used
for hydroponic growth.
Metal Halide Bulbs (MH)
Arguably the most highly recognized HID-type bulb, metal halide
bulbs produce the closest emulation of summer sunlight available,
and generate the spectral colors plants thrive on most most
particularly the blues, which are ideal for vegetative growth. MH
bulbs tend to die out gradually and need to be replaced before they
actually burn out, because they eventually don't produce enough
lumens to help the plants anymore. Good thing that they're
long-lasting, having an average life of 10,000 hours, or a
year.
High Pressure Sodium Bulbs (HPS)
The other HID-type bulb, the high pressure sodium bulb, is most
appropriate for supplementary lighting, used in combination with
natural sunlight. HPS bulbs are great at emitting the orange-red
part of the spectrum - ideal for flowering plants. Compared to
metal halide, HPS bulbs as
grow lights are longer-lasting (on the average
18,000 hours) and are less expensive. The downside is, because
they're deficient in blue light, HPS bulbs are not normally
suggested as a replacement for natural light, nor as an alternative
to metal halide. Rather, they'd do well in a greenhouse
environment.
Fluorescent Bulbs
The fluorescent bulbs at present, as compared to the earlier days,
are intense enough to produce enough lumens needed by hydroponic
plants. This can be done either with high-output tubes or with a
large number of lower-output tubes. Because they produce less heat
than HID bulbs, they can then be placed closer to the plants,
thereby making up for their "lack of intensity."
LED Grow Lights
LED bulbs are close to perfection: they're comparable in output to
high pressure sodium bulbs, emit very little quantity of heat and
are highly energy-efficient. The only downside is that they're
expensive and promote slower growth. In fact, fluorescent grow
lights can achieve the same results as LED bulbs, without the issue
on money. So while they're the newest thing, the jury is basically
still out on whether LED bulbs will be the wave of the future for
grow lights.
Date Published: Dec 22, 2009 - 10:09 pm
This is sort of dorky, but also kind of awesome... What is an LED?
A light-emitting diode (LED) is an electronic light source
presented as a practical electronic part in 1962. The foremost LEDs
were most of the time used in costly equipment such as laboratory
and electronics test equipment, then subsequently in TVs, radios,
telephones, calculators, and even watches.
Now, LED's have all kinds of functional, not the least of which is
indoor gardening.
LED grow lights are applied in the most popular
form of indoor gardening, hydroponics. When plants are grown
outdoors, they need the nutrient giving sun to provide them with a
complete light spectrum range.
But, sun is not sufficient enough indoors so it should be augmented
so hydroponic lights are applied to mimic what the sun's light
spectrum can offer plants. sun is produced when photons, contained
by the atoms, run around or change electron positions, as you would
recognize if you review your noesis of physics and chemistry. This
perpetual process generates sunshine. With the help of electricity,
reproducing this process is the way how LED grow lights work. There
are certain spectrum's that a plant cannot use, such as green light
spectrums, so man-made indoor light with that spectrum are wasted
on plants, even though the sun itself creates light in all
spectrums.
With hydroponic lights, though, this isn't always the case. Some
indoor grow lights are designed with making a certain spectrum,
commonly either red or blue, while others are full-spectrum grow
lamps right for all levels of plant growth. What this entails is
that if you are cultivating seedlings on to adulthood, it may be
necessary to have different hydroponic lights available to be able
to provide them the right light spectrum they require when they
need it. Be conscious of what you are growing and what light
spectrum your plant requires prior to purchasing
LED grow lights.
Date Published: Nov 25, 2009 - 11:49 am
Using
grow lights is the best process to grow crops in
your own home when there is no garden or yard to cultivate your
plants.
With the help of this guide, you can easily begin growing your own
plants within hours.
Basically, you would need to comprehend the concept and functions
of these lights
These lights were made for indoor plants Since the plants won't be
getting the sunlight that they get in a garden or yard, synthetic
lighting will recreate a plant's normal environment and provide all
of the light that it needs for photosynthesis (the process through
which plants get their energy)..
remember that each plants, based on their own individual
environments, vary in the levels of light required. Before you run
out to purchase a light, read up on where your desired plant is
typically grown and the amount of light it needs to live.
Then, you'll have to know the different types of lights on the
market.
Incandescent light bulbs are the least effective and least energy
efficient. While they may provide some light, they are basically
used as a "heating light" and consume more electricity than the
other lights available.
Fluorescent lights are the most efficient and is the commonly used
grow lights on the market. These lights last up to 20,000 hours and
provide a perfect environment to take care of all types of plants.
For larger crops, it is advised to use bright lights while the
dimmer ones are suitable for growing vegetables.
LED lights over fluorescent lights are seen( to be more effective
when it comes to growing vegetation despite the fact that its new.
These lights are affordable, energy-savers and only emanates colors
that the plants need.
Once you have purchased the light, it is time to start setting up
your own indoor garden.
Remember, the bigger the plant, the more light it needs. Since
there are plants that require light and darkness, many of these
lights are installed with timed mechanisms.
You will also want to retrieve as much out of your lights as you
possibly can so it is better to buy eflectors for your lights, not
just bulbs. They are perfect in increasing the amount of light from
one bulb.
These
grow lights are perfect when you want to grow
your own organic vegetables, practice your green thumb or grow
beautiful plants.
Enjoy gardening!
Date Published: Nov 24, 2009 - 8:29 am
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Date Published: Nov 24, 2009 - 5:07 am