Warning!!!
Rigorous testing by Maxibright the respected
British Horticultural lighting company has revealed that most
of the 600w ballasts at the cheaper end of the market are
delivering significantly less power to the lamp than advertised.
An underpowered lamp can provide shockingly up to 33% less
light light to your plants.
What does this mean to you the
grower?
- Significantly less yield
- Poorer quality produce
- Weaker plants
So buying a cheap lighting kit to make a saving of £10
to £15 may cost you substantially more in the long term
due to reduced yield and lower quality produce and is probably
not as good an investment as you think!
Our advice:
Buy a quality assured genuine 600w system such as the ones
we sell here at the HydroponicWarehouse with top of the range
branded lamps rather than cheap generic lamps, YOUR PLANTS
WILL REWARD YOU!!
Why
do plants need light?
Light is essential to plant survival. If you remember back
to school biology lessons you may remember that plants need
light to photosynthesise. This is where plants use the energy
of light, Carbon dioxide (CO2)
and water (H2O) to produce sugar.
Plants then use this sugar to build other chemicals such as
proteins and for growth.
Sunlight is made up of a whole
range of colours of light or spectrum. Plants use different
parts of the spectrum for different purposes. Blue light is
used by the plant for vegetative growth (leafy growth) generally
keeping the plant nice compact and bushy. Red light is essential
to plants for fruiting and flowering, the plants becoming
elongated possibly in the hope of being pollinated. When using
artificial plant lighting it is possible to prevent your flowering
plants from getting too stretched (etiolated) by ensuring
they still receive adequate blue light.
It is a general misconception
that plant lighting is hydroponic lighting however it is not
essential to use artificial lighting with your hydroponic
system or visa versa as long as the plants you want to grow
are getting adequate light. Some people want to grow where
there is not enough natural light or grow in a place where
there is no natural light for example a basement and therefore
need a plant grow light.
What types
of plant lighting are available to me?
Commonly used plant grow lights are usually either fluorescent
lighting or HID (High Intensity Discharge) lighting.
Fluorescent
lighting:
Fluorescent tubes provide light without the problem of excessive
heat output, which means that you the grower can have the
light tube close to the top of the plant thereby maximising
light without scorching or burning.
You may use fluorescent tubes to provide light for mother
plants, cuttings and seedlings, avoiding the heat problems
associated with HID lamps. Fluorescents may also be hung in
among plants to ensure that lower parts of the plant receive
adequate light.
Highly recommended fluorescent lamps are the Ecolight®
compact fluorescent (CFL) range which are available in Red
spectrum 2700k, Blue spectrum 6400k and Purple spectrum 25000k.
HID (High Intensity Discharge):
These lights comprise metal halide
(MH) lamps, high pressure sodium (HPS) and and the now relatively
obsolete Mercury vapour lamps.
Both HPS and MH give off vast quantities of light and a fair
amount of heat, therefore it is essential that the lamps are
kept a safe distance above the tops of the plants. A good
indication of a lamp being to close is that if it burns the
back of your hand at the plant tops it will burn your plants.
Some elegant solutions are available that allow you to get
the lamps closer to your plants without harming them such
as the Super-spreader ®, reflectors with air extraction
and light movers. Generally the closer the lights are to your
plants the quicker your plants will grow.
HPS are rich in the red-orange-yellow part of the spectrum
and are used for flowering and fruiting and they have a warm
orangey yellow glow to the naked eye. Examples of HPS lamps
are Philips Son-T+ and Osram NAV-T super.
MH lamps are extremely rich in the blue part of the spectrum
and are generally used in the vegetative part of the plant
life cycle. They look a cool white sometimes with a bluish
tinge to the naked eye. Examples of MH lamps are Philips HPI-T
and Osram HQI-T
However there are lamps available
that offer a combination of the blue and red spectrum, these
lamps have the advantage of being suitable for both the vegetative
growth phase and the flowering growth phase. Examples of these
are the Philips Son-T-Agro, the Osram Plantastar and the Grolux
from Sylvania, these come very highly recommended by the
hydroponicwarehouse.
LED Lighting Systems:
These lighting systems come with
light emitting diodes (LEDs) that give off specific wavelengths
of light radiation.
A quality LED lighting system
such as the ones available here at the HydroponicWarehouse
manufactured by local company GrowNorthern are manufactured
to be able to both vegetate and flower your favorite plants
due to the finely tuned array of different wavelength LEDs.
LED lighting systems have numerous
benefits for the home grower such as:
- Low power consumption.
- Low heat output.
- High PAR output.
- No expensive HID lamp changes.
A quality LED lighting system
may be more to buy initially than an HID system however with
a 50,000 hour LED life they do have the benefit of not needing
regular lamp changes.
What size lamp do I require?
It is essential to take into
account the type of plant that you are growing and the size
of the growing area when deciding how much light you need
to provide.
For example a tomato plant requires very high light levels,
so when using HPS as much as 40 watts per square foot is required.
So using this information when growing tomatoes indoors the
most commonly used wattage lamps will illuminate the following
size areas
250w = approx 3' x 2'
400w = approx 3' x 3'
600w = approx 5' x 3'
Work out how much light your
grow-room will require by calculating the area of the floor
in square foot and then multiply it by 40 to get the total
number of watts required. It is then a simple matter of purchasing
the correct number of lights at the hydroponicwarehouse
.
More experienced growers know
that over a period of time the amount of light that a bulb
emits drops, thereby causing plant yields to suffer. As a
rule of thumb lamps should be replaced after 9 months to a
year of use.
What comprises a Lighting system?
A HID lighting system
is comprised of the following components:
A reflector (shade) to reflect
the light down onto the plants.
A Ballast (starter box) to ignite and illuminate the lamp.
A lamp to produce the light.
There are many different lighting systems on the market today,
giving you the discerning grower a fantastic choice.
So please buy the best quality
system that your budget can afford, you may save £10-20
on the system price but if it has an inefficient reflector,
ballast and low quality lamp the saving will be more than
outweighed by a decrease in final yield of your crop and most
importantly your disappointment.
When investing in a light
system, ask does the ballast: meet CE regulations? have frequency
matched components? operate silently? come with a full warranty?
The hydroponicswarehouse only present top quality
systems for your satisfaction, having efficient reflectors,
frequency matched ballasts that are cool running,silent and
with top quality BRANDED lamps. |