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The best lighting for hydroponics
Researchers have never been to bed, that explains the more inventions coming through every new day. No one
would have thought that plants would ever be grown without soil, from seedling stage to bearing. Thanks to
technology, this is now possible, and more is yet to come. Hydroponic Lighting is a very vital aspect in the
success of hydroponics, considering light is a key player even in the traditional setting.
A lot has changed since the first real experiment of hydroponics, precisely indoor practice. Light
that was used then lacked in many fronts, though everything went as planned. As more and more adjustments are being
made, there is always something new and the lighting section has not been left behind.
The greatest aspect about lighting that should be prioritized is certainly the intensity. For your
information, initial hydroponics lighting was done by candles, with a candle
being placed 30 centimeters from the plant. 1 candle represented one foot, and that is now known as a lumen. It was
hectic then, but now there is more advanced lighting systems with automated intensity regulators.
From light intensity, the other important factor is the color spectrum of light. Naturally plants require
a crimson range of light and also bluish green range. Crimson is ideal for budding and flower stage while bluish
green is required during growth.
Incandescent bulbs give an ideal intensity but the harbor high heat making it an expensive choice. The
best option for hydroponic lighting is white fluorescent bulbs which do not heat. Cool bulbs can be used in the
early set up before being replaced with warm ones upon maturity. They can still be used at the same time; provided
they do not emit too much heat and the electricity consumption is fair. This form of lighting is cheap, even in the
usage because 30 watts can sustain one square foot.
HID hydroponic lighting is another very good method of lighting. As the name suggests, High Intensity
Discharge, this form uses pressurized gas to light. They are suitable for indoor setting due to their ability to
produce too much light from a pressed portion. The only setback is that, HID lights are costly to use and maintain
and they are known to heat fast.
The newest invention in the lighting segment is the LED lighting, initials for Light Emitter Diodes. This
is a form of lighting that has been specifically formulated for hydroponics. Manufacturers looked at existing
methods and decided to combine advantages of each, eliminating the side effects to produce an ideal garden
lighting.
The Lighting Is Most Important
It has become a general perception that if hydroponics is practiced outdoors then there is no need
for the farmer to provide artificial lighting. To a certain extent, this perception is right, since no such
lighting is needed if sunlight is present in ample quantity. Thus, a transparent grow tent may be used in such a
situation and there will be no need to provide artificial lighting. However, there are certain cases where this
perception may not hold true. Take the example of a situation where hydroponics has to be practiced indoors, where
the natural light cannot reach, or think of countries such as England or Ireland, where quality sunlight is not
available for most of the year. For a practitioner of Hydroponics to succeed in his ventures, there has got to be
Hydroponic Lighting in order for the plants to show proper growth.
The theory behind the provision of light to plants is that unlike animals, plants cannot eat
or drink, rather they produce their food by a process called photosynthesis. It is the process by which the
chlorophyll cells in the leaves of a plant make glucose out of water and carbon dioxide, using light as a source of
energy. Therefore if a plant is not provided with a proper amount of light, it can stay malnourished and may die
off at a point in time. Light is therefore vital to the survival of a plant and on the average, a plant needs
between eight to twelve hours of light in order to make the optimum amount of food for itself. The Hydroponic
Lighting therefore becomes a necessity if one intends to practice hydroponics and house the unit
indoors.
There are different types of Hydroponic Lights available for use by both the professional
farmers as well as for those who practice backyard hydroponics or are garden hydroponics enthusiasts. Whatever the
scale of production, the concept and technology behind the lights are the same. In the earlier days, there used to
be only one type of filament based Hydroponic Lighting, but with the passage of time and advancement in technology,
several different versions of lights and specialized lighting equipment is now available, which will now be
discussed in detail.
The first type of Hydroponic Lights is the High Pressurized Sodium or HPS lighting. These
lights are known to provide the brightest light of artificial lights. This is because a sodium filament when
pressurized under an inert gas produces an intense light, which can be said to simulate the light of the sun. Such
lights are good but consume a good amount of energy. The second type of Hydroponic Lighting is known as the metal
halide lighting. Although it produces bright light, the intensity is less than the HPS lights, but these lights
tend to last longer than most HPS lights, due to lower filament temperature. The third generation of Hydroponic
Lights is the fluorescent lighting, which is known for its cool and mild lighting, suitable for mildly growing
plants. A fourth generation of LED grow lights is also capturing its share of the market.
Hydroponic Lighting is therefore a must
for indoor usage, but it must be chosen according to the needs and the conditions under which they are to be used,
otherwise the desired results will not be achieved.
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