For Plants, Not People
How do plants capture and use
light? This question has been studied and
researched for decades, and researchers have
long known that plants use different frequencies
of light, or different colors of light, for
different purposes. Some colors of light
make plants grow and bloom, while others
promote compact growth, and some aren't really
used much at all. For example, the leaves
of plants look green because they reflect
green light. If a plant reflects a color
of light instead of absorbing it, that color
isn't used to help a plant grow.
Scientists used this knowledge
to develop lamps that would let them raise
plants without sunlight. Their new "grow
lights" weren't developed from scratch.
They took existing lamps, the same ones used
to light our homes and factories, and modified
them to produce more of the colors of light
that are used efficiently for plant growth.
And they were successful.
we have many lamps that can be used to
help grow plants without sunlight. They
range from incandescent bulbs to fluorescent
tubes, to the very powerful metallic vapor
lamps, such as metal halide and high pressure
sodium lamps. These lamps can all be used
to grow plants indoors. And they all have
the same problem: they produce a lot of
light that plants can't use efficiently.
The lamps we use in our homes
generate a lot of light in the green and
yellow part of the visible light spectrum,
because the human eye is very sensitive to
those colors of light. Plants, on the other
hand, prefer light of other colors, colors
people don't see very well. So while old-fashioned
grow lights will let you grow plants indoors,
they waste a lot of energy making light plants
can't use efficiently.
But they sure do look bright,
grow lights are designed from the ground up, optimized
for plant growth, not human vision. Using
light emitting diodes, or LEDs, they selected
the colors of light plants use most efficiently
for vigorous growth and health. The result
is a plant grow light that uses very little
energy yet provides all the light your plants
need to thrive indoors. They also used their
specialized knowledge of LEDs to make sure
each bulb operates optimally, providing maximum
light output and maximum bulb life.
patents pending technology offers other advantages
over conventional artificial plant grow lighting.
Energy Use: LEDs are more efficient
at producing light than conventional glass-envelope
bulbs. Depending on configuration, a typical
LED-PlantBar uses less than 2 watts
of power. An important fact as energy costs
continue to rise.
Light Output: Unlike "broad
spectrum" plant grow lights, which
produce a lot of light plants can't use
efficiently, PlantLED products
only deliver the light colors plants want
most for vigorous, healthy growth. By leaving
out light plants don't need, we provide
still more energy savings over conventional
plant grow lights.
Light" Glare: Other plant
grow lights use technologies generally
used to light rooms and buildings, which
makes them very bright to the human eye.
PlantLED products deliver light
that is very bright to plants, but relatively
dim to people. Your plants get what they
need without the "white light" glare
you don't need.
Heat: Conventional grow lights
are very hot, running from several hundred
degrees to over fourteen hundred degrees
Fahrenheit at the bulb's surface. Our grow
lights are merely warm to the touch, even
after operating for hours, and are safe
around both children and animals. This
low heat is also safer for your plants,
allowing you to place the lights as close
to your plant's foliage as you like, for
maximum effectiveness, without fear of
burning their leaves. Delicate blooms don't
fade or burn at the edges, and last longer.
Lower radiated heat also means a savings
in room cooling costs.
Voltage: Our grow lights are low
voltage devices, running typically on less
than twenty volts of electricity, making
them an ideal choice for homes with children
Life: Typical LED lifetime is
20,000 – 100,000 hours. This is ten to
fifty times longer than typical glass grow
light bulb life expectations. Replacing
glass bulbs every year adds a lot to the
expense of a growing system.
weigh just ounces, far less than conventional
fluorescent and metallic vapor systems
which typically need a ballast weighing
up to fifty pounds. Some manufacturers
build their ballasts right into the light
fixture, making the light hard to hang
in your home or office. Ballasts also burn
out eventually, requiring another expensive
component replacement not needed with LED-PlantBars.
Reflector: Conventional glass
envelope grow lights emit light in all
directions. In order to use as much of
this light for plant growth as possible,
these lights are generally fitted with
bulky, unattractive reflectors to direct
light back toward the plants. With LEDs
the reflectors are built right into the
LEDs themselves, so no secondary reflector
is needed. Almost all of the light generated
by the LEDs in the LED-PlantBars is directed straight at your plants.