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Artificial light(LED Grow Lights) can be used for plant growth in three different ways

3/2/2012 2:25:38 AM

Artificial light(LED Grow Lights) can be used for plant growth in three different ways:
1. To provide all the light a plant needs to grow;
2. To supplement sunlight, especially in winter months when daylight hours are short.
3. To increase the length of the "day" in order to trigger specific growth and flowering.

Here are several reasons why you may choose to grow your leafy greens under led lights.
1- you may not have a readily accessible sunny window ledge or you may not have enough of them. I have a kitchen window
ledge that gets good sun in summer but very little in winter.
2- using our desk light series you can use the lights to grow your sprouts as well as light the work area of the desk(the shade
rotates to adjust the spread of light). A great break from work to look up and see your salad growing in front of you, or on
your kitchen bench shedding extra light on your chopping board..
3-you may have a large family or like me like lots of salad so you can easily turn a bookshelf into your own personal salad farm.
4- as mentioned before growing sprouts inside is very convenient and free from animal and insect competition, growing under
lights gives you flexibility as to where you do it with limited space, and growth rates are not affected by season, making
having an indoor garden that much easier.
5- using the latest low wattage, high intensity LED grow lights, gives you even more options as it is now not only much
cheaper to run, 7W vs 15W-28W, 90W vs 400W-600W(salad greens), they can also be used to grow vegetables to
flower & fruit in very short periods of time. eg Tomatoes, Strawberries etc.

The Benefits of LED Grow Lights
Running Costs
The main benefit of using LED grow lights is the lower running costs. The better ones on the market use up to 90% less
electricity than comparable Sodium/HID bulbs. LED grow lights can be used as either a primary light source or a
supplemental light and they will pay for themselves in around 6 months of heavy use. The expected life of a LED grow lamp
is on average 100,000 hours. This is 10 to 50 times longer than a typical Sodium/HID grow light bulb.
Purchase Costs
Although initial purchase costs may be higher than comparable Sodium bulbs, the real costs are often lower because you
don't need a ballast. Unlike fluorescent tubes and metallic vapour lamps that need a ballast to operate,
LED grow lamps don't need a ballast. This eliminates a recurring cost from your grow room set-up.
You also don't have the extra costs of purchasing a reflector as LEDs have the reflectors built right into themselves.
Grow Season
Since the Chlorophyll does not have to battle with unwanted light-waves, LED's can also be left on 24 hours a day without
stressing your plants out. You can also use LED grow lamps to simply extend the day period of your light cycle by
4/6 hours during the Winter months. This extends your grow season to 365 days per year.
Benefits To The Environment
Switching to low energy, solid state lighting benefits the environment. The low power requirements of LED light sources
make them ideal for self-contained, solar or wind powered installations,particularly in remote locations. LEDs consume far
less energy than standard light bulbs, leading to greatly reduced energy costs. LEDs also require far less energy to
manufacture than other light sources, reducing their environmental impact even further. Less Environmental Hazard- Metallic
vapour and fluorescent lamps all contain mercury, a heavy metal identified by the U.S. Government as hazardous to the
environment and our landfills. Our LED Lights do not contain mercury.
Targeted Light Output
Broad spectrum grow lights produce a lot of light waves that plants can't use efficiently. LED Grow Lights only deliver the
colours of light used by plants for efficient and healthy growth.
Minimum Heat
LED grow lights are warm to touch and won't scorch young or tender plants as HID lighting can.The high heat generated by
a typical metal halide or high pressure sodium lamp can reach several hundred degrees to over 14 hundred degrees
Fahrenheit at the bulb's surface. This excess radiated heat output adds to the grow room temperature greatly.
Most LED grow lights operate at just a few degrees above room temperature, thus reducing your grow room cooling costs.
Watering
You wont need to water as often if you use LEDs as your plants will transpire less. If for some reason, you need to leave
your grow room unattended for a few days your plants will have a better chance of surviving if the grow lights are not
producing lots of heat that drys them out.
Humidity
LED grow lights are ideal for plants like Salvia Divinorum and Ferns that have high humidity requirements.Cuttings will also
root easily as they don't suffer as much from the stress of water loss while new roots are forming.

As we know ,the HPS, Incandescent Lamp and Fluorescent Lamp emit all the spectrum of visible light & some sightless light,but LED Grow Lights only deliver the colours of light used by plants for efficient and healthy growth !

What do you need?
Red and Blue light is essential for plant growth. It is well known that chlorophyll, which is contained in the green leaves of
plants performs photosynthesis. Red and Blue are the wavelengths most essential for photosynthesis. The blue absorption
region is 430-450 nm and that of red is 650-670 nm.

Recent research suggests that the ideal balance is 92% red LEDs and 8% blue LEDs. Although the lamps we use have a
higher percentage of blue LEDs and they work fine. Blue has a smaller influence than red light so anything between
1% and 20% of blue light can be selected, depending on your plants and their growth requirements.
When choosing your lamp you want both colours with the same frequency and relative intensity per LED.

These days most LED Grow Lights only deliver the colours of light used by plants for efficient and healthy growth.
By leaving out the wavelengths plants wont need they provide better energy efficiency than conventional grow lights.

Red Light
Red Light is in the vicinity of the first peak of a plants light absorption spectrum (660nm) and it contributes to the plant
photosynthesis. Red light, when combined with blue light, encourages flowering. It can also be used in higher doses to
stimulate flowering, seeding and fruiting.
Blue Light
Blue light is responsible primarily for vegetative growth (leaf). It is known that chlorophyll has the second distinct absorption
peak in the vicinity of blue light wavelengths (450nm). The blue light is also indispensable to the morphologically healthy
growth plant. There is also more sunlight energy in the blue-green wavelengths.

Lumen and Lux
These are measurements of how bright a light source appears to the human eye only. If a grow light manufacturer rates their
grow light output in Lumen then they are only telling you how bright the grow light will appear to your eyes and has NOTHIN
to do with plant growth since plants only use a tiny percentage of the FULL light spectrum that old fashioned grow lights emit.
In fact Chlorophyll is green for a good reason, plants use this colour as a type of "Sun-block" to remove 95% of the unwanted
and damaging light wavelengths. LED Red / Blue lighting have such narrow bandwidths that plants without green Chlorophyll
would actually survive and never be damaged by the LED's perfect and tailor made light wavelengths. Nearly 100% of the light
an LED grow light emits is completely absorbed by the plant! LED's can also be left on 24 hours and day without stressing
plants since the Chlorophyll does not have to do battle with unwanted light-waves.

The most accurate unit of measurement for grow lights is in microEinstein's, which measures how many photons of light strike
an area per second. But it is still not correct to use it for comparing grow lights because of the tiny band widths of light plants
actually absorb.The irradiance power factor or amount of light that actually gets used in plant growth or Chlorophyll production
can be factored at a rate of 400?mol/m?sec per every 150 LED's average since they have an extra high MCD output.
Now remember this rating is 95% growth efficient light!! All other grow lights except LED grow lights emit mainly wasted
light energy that does not help the plant produce Chlorophyll. In fact 95% is wasted since plants only use very narrow
bandwidths of the total light energy. Rating light output in simple terms like Lumen or Lux is EXTREMELY misleading
especially when rating a GROW LIGHT which has a very specific job, like creating Chlorophyll 'a' and 'b' !

It is our responsibility to save energy for future generations, and we are going to work hard and endeavour to exploit the potential of saving electricity by using semiconductor such as Light Emitting Diodes (LED) for applications such as plant grow,traffic and other lighting requirements. Meanwhile, we will be taking advantage of combining semiconductor information and traditional illumination technology to produce the next generation of lighting.

Lux Lighting Co., Ltd is a high-tech private enterprise, Professional in researching, developing,and manufacturing all kinds of LED illuminations products. The company's cofounder is the China electron science and technology university's photoelectric expert Doctor Tai and Doctor Kim. Our company is based on the business ideology of "leading with science & technology, high quality and efficiency, honesty and customer satisfaction". We endeavour to cooperate with customers worldwide to our mutual benefit.

The company is located in Bao'an district of Shenzhen, Guangdong Province of China, and occupied an area of 2000 sq.m, it has a capable team of more than 100 employees responsible for product research, development and production.

Our products are specifically in LED Grow Lights , LED Plant Lights, LED Greenhouse Light, UFO LED Grow Lights . The products are widely applied to all kinds of greenhouse,plant grow and industrial lighting projects all over China, and we currently export to more than 30 countries including Holand, Spain, America.
Our goal is to supply you the most reliable and highest quality lighting products. All our manufacturing facilities are ISO 9000 certified, and our products have attained CE, ROHS certificates.

Our company employees skilled professionals who are experienced in finding innovative answers to today's architectural designing needs. Our company boasts with highly advanced technology, good after sales service, and on-time delivery