LED Grow Light: Energy Saving and Efficient

LED Grow Lights are mostly blue and red lights bead-based, providing the plant required energy according to plant light needs, promoting normal plant photosynthesis to help plants grow normally. The visual effect, the combination of red and blue LED plant growth lamp showing pink.

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Blue light helps plants in collaboration with, can effectively promote the growth of stems and leaves of plants, fruit formation, protein synthesis; red flowering plant can greatly contribute to help increase flowering rate and extend the flowering period, while increasing fruit set and fruit quality .

It was found that planting multi-word, LED grow lights effect is very significant, after using LED grow lights, plant growth rate than the average natural growth of plants up to about three times faster, but also solve the annoying lack of sunlight in winter greenhouses and plant Lights enhance collaboration light plant chlorophyll, carotene and anthocyanins used as needed to shorten the cycle of plant growth and maturation time to market, increase production while also improving the quality of the product.

LED light source known as a semiconductor light source, narrow wavelength control, can send a specified wavelength spectrum, usually seen in the color of light is controlled to control the wavelength of light (spectra).

LED grow light power is small, but the efficiency is very high indeed. Most of the time we use lamps, light emitted from a variety of bands, covering the entire range of visible light, only red and blue for normal growth of the plant, a large part of the energy is wasted, which is why a few ten-watt LED grow light also benefits less than the effect of planting hundreds of watts of traditional plant lamp.

Traditional plant species lamps, sodium comparative lack of Blu-ray, the relative lack of red mercury. After multiple test summary. Overall performance LED grow light to be higher than many other plants grow light in agriculture efficient, energy-saving made truly outstanding contributions.

 

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Why LED Grow Light is an High-tech LED Application ?

Indicators LED Grow Light LED industry can be said to be the most copied. A variety of plants in the unique geographical environment to survive, including sunlight, temperature, altitude and soil, etc., they form a unique breeding flowering response strategy in the last million years of evolution in the life of the natural environment, and that is the flowering season is limited to a suitable period to ensure that the offspring can smoothly growth and development, which is the phenomenon of light cycle of a plant. Most plants in natural selection and evolution have gradually adapted to the natural rhythm of light environment, to form a clear reproduction of the best seasonal. Studies have shown that photoperiodic induction of flowering plants important environmental factors, analyzed the performance of the plant breeding laws in order to improve output efficiency of agricultural facilities, and promote healthy development of the farming industry.

led grow light

Photoperiod is an important factor inducing flowering plants. Based on the flowering photoperiod physiological pathway analysis, an overview of the photoperiod specific application in plant flowering, it pointed out the application to consider other effects of environmental factors for agricultural facilities flower planting and efficient development of a useful ideas, but also for LED grow light manufacturers and control designed to provide a scientific basis.

Flowering photoperiod physiological pathways

Leaf feel photoperiod signal, this flowering stimulant conducted to the tip of the stem growing point. Phytochrome and Cryptochromes as a light receptor is involved in this pathway, through gene expression, and the completion of flowering control the formation of floral organs. At least three types of photoreceptors in higher plants: Feel the red and far-red phytochrome, absorbs ultraviolet (UV-A) and Blu-ray Cryptochrome and phototaxis factors.

Plant photoperiodic response types

Plant Nutrition and transferred from a purely vegetative growth to reproductive growth is double the plant life in a major turning point, and its importance for the continuation of the plant species itself. United States Gardner (W.W.Garner) and Arad (H.A.Allard) proposed a “plant itself can measure the day length and season accordingly perceived” concept in 1920, which is now called photoperiodism.

Within a certain period of development, based on length of day type of reaction can be divided into the plant long-day plant (long-dayplant, abbreviated as LDP), short-day plants (short-dayplant, abbreviated as SDP), Day-neutral plants ( day-neutralplant, abbreviated as DNP). LDP refers to the exposure time must be longer than a certain number of hours per day and after a certain number of days to flowering plants. Such as wheat, barley, canola, henbane, osmanthus and sugar beet, and the longer the exposure time, the earlier flowering. SDP refers to the illumination time of day must be shorter than a certain number of plants when to flower. As appropriate to shorten the light, flowering earlier, but the extension of the light, the delay flowering or not flowering. Such as rice, cotton, soybeans, tobacco, begonia, chrysanthemum, morning glory and cocklebur like. DNP refers to any day conditions can flowering plants, such as tomatoes, cucumbers, roses and Clivia and so on.

Flowering light cycle regulatory application of key issues

1 plant critical day length

Plants critical day length refers to the circadian cycle, inducing short-day flowering plants can endure the longest sunshine or inducing long-day flowering plants must shortest sunshine. For the LDP, the Japanese grew up in the critical day long, even 24 hours can blossom. But for SDP, the date must be smaller than the critical day length to flower, but not too short flowering.

2 key manual control flowering and photoperiod

SDP flowering decide on the length of the dark period does not depend on the length of time illumination. LDP flowering sunshine required length longer than the SDP is not necessarily required day length flowering.

We learned flowering photoperiodic response and key type, you can extend or shorten the length of day in a greenhouse, control flowering, flowering time to solve the problem. Artificial light can accelerate the extension of long-day plants flowering, appropriate to shorten the light, can promote short-day plants flowering early. It intends to delay flowering or non-flowering, setting operation can be reversed. If the long-day plant cultivation in the tropics, due to lack of light, they will not bloom, the same short-day plants cultivated in temperate and boreal also because exposure time is too long to blossom.

3 introduction, breeding

Artificial plants photoperiodic control of this has very important implications for the introduction, breeding plants. SDP is introduced to northern South seed to bloom early, late-maturing varieties need. Similarly south species northward, to be early-maturing varieties; seed for LDP is introduced north south, to delay flowering, to be early-maturing varieties. Similarly south species northward, to be late-maturing varieties. For example, the genus Malvaceae Hibiscus Roselle is SDP, if south species northward extension of the vegetative growth stage. Budding, flowering, seed of lag, early frost was easily hurt, then you should know that need shade treatment.

4 red and far-red floral induction

The main receiving Photofrin red (Pr) and far-red (Pfr) signal, the impact of flowering induction. Flower effect is not determined by the absolute amount of Pr and Pfr, but affected Pfr / Pr ratio. SDP in the lower Pfr / Pr ratio under the flower, while LDP flowering stimulate the formation of substances requires a relatively high Pfr / Pr ratio. If the dark period is interrupted red light, the ratio Pfr / Pr increases, so SDP flowering is inhibited. LDP to Pfr / Pr ratio stringent requirements better than SDP, but long enough illumination time, relatively high irradiance and far-red light to induce flowering LDP is essential.

LED lighting effects and control system

Photoperiodic control of light and dark is a state within a day range, can be artificially set automatically change. LED control technology has been controlled by a single initial constant current, the current development of SCR dimming, PWM dimming, DMX512, DALI, ZigBee protocols such as dimming. Control mode is also developed from the first wire technology to IR, FR, Wi-Fi short-range wireless control. The controller uses an embedded structure, the optical parameters can be real-time monitoring data via the Internet to communicate with a remote server, the system can easily achieve the brightness regulation time.

Summary

In fact, even for one door outline families have different segments. Their needs are not the same light. Light cycle regulation environmentally safe, low cost LED lamps and labor-saving features and simple in agricultural facilities. Therefore, rational and effective use of light can break the cycle of seasonal restrictions factory cultivated plants within certain limits, to achieve anti-season to stimulate or inhibit, in order to achieve the purpose of efficient production of agricultural products. With the continuous development of science and technology, the photoperiod phenomenon is bound to a more profound understanding. The photoperiodic regulation of flowering plant breeding applied to industrialized species colonization industry, will promote the steady and rapid development of agricultural facilities and LED lighting applications Plant Industry.

 

LED Light Distribution Method of 14 Kinds of Plants

Sunlight is made up of many different wavelengths of light composed, and only a very small part of the impact on photosynthesis in the solar radiation spectrum, about 5% of the proportion of sunlight. PopularGrow early as 2006 he began to study the spectrum of special LED grow light, through the study results 620-680nm red and blue-violet light 400-500nm best ratio, which successfully developed many popular products.

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Here is part of the research ratio parameters:

(1) Lettuce: planting and breeding red and blue light respectively 6:1 and 7:1 source best suited to its growth.

(2) leeks: Red / Blue 7:1 process under leek plant height, stem diameter, leaf width ratio mass were significantly higher than other treatments.

(3) Cucumber: 7:2 is best suitable for cucumber seedling growth ratio of red and blue. The growing proportion of 7:1 for the best red and blue.

(4) green vegetables, spinach: it is appropriate to 7:1 vegetables, spinach leaves grow best ratio of red and blue.

(5) white radish: Growth optimum light quality: red and blue ratio 8:1.

(6) Lettuce: red and blue ratio of 9:1 conducive to the growth of lettuce.

(7) strawberries, tomatoes: red and blue 9:1 on strawberries, tomatoes grown the most favorable, and full of fruit and nutritious.

(8) Holly: 8 to 1 ratio of red and blue in accordance with the configuration, holly grow best, very strong and well-developed root system.

(9) Sprouts: red, green and blue light ratio 6:2:1 most obvious effect.

(10) Calla: growth to fill according to the proportion of red and blue 6:2 best.

(11) Anthurium sun: a comprehensive analysis of red and blue 7/3 treated better, help shape, root growth and dry matter accumulation.

(12) Dendrobium: 7/3 red and blue, the proliferation of the best; 6:4, the more conducive to photosynthesis recruits and material accumulation.

How to Find a Suitable and Satisfactory LED Grow Light?

Plants fill light is the use of semiconductor lighting principles, dedicated to flowers and vegetables and other plants produce a combination of high-precision technology, plant growth assist lamp. General indoor plants flowers, growing over time getting worse, the main reason is the lack of light exposure. LED grow light exposure through the spectrum required for plant, can not only promote their growth, but also to extend the flowering period to improve the quality of flowers. Further to this highly efficient light source system applied to greenhouse, greenhouse facilities, agricultural production, on one hand, it can solve sunlight insufficient led to tomato, cucumber and other greenhouse vegetables taste decrease, on the other hand, it can also make fruit and vegetables in greenhouses ahead of the market in winter.

How to find a suitable and satisfactory LED grow light?

First, light intensity

LED grow light is developed based on the basis of plant photosynthesis artificial light tool. In photosynthesis light intensity does not refer to how bright the lights, but to see how much light reaches the quantum unit of time per unit area, which is the photon flux (PPFD), its unit is μmol · m-2 · s- 1, while the Lux makes no sense here. When selecting a plant light, first look at the product identification, whether the identification is correct or not. Secondly, consult matters related to the business according to the species, such as optimal hanging distance and irradiated area.

Second, light quality

For light quality, if not to provide lighting for the plant factory, plant lamp generally just need red and blue light quality is enough. Different plants need for red and blue light quality is different, some need a little more blue,

some may need more red light. But pure red light or blue light on plant growth is negative, it is necessary to choose the right ratio of red and blue. Buyers can make their own ratio based on the plant species, or let merchant providing a suitable ratio after the research and development.

In addition, energy consumption, energy absorption rate, lifespan, maintenance costs are also need to be considered.

Best Led Grow Light 2016 for Cannabis

PopularGrow lauched a new model of led grow light, the model is HY-MD-D169-S. Compared with other products, it’s back board meterial is aluminum alloy, thus make heat energy radiating to air faster and lamp has longer lifespan. It means HY-MD-D169-S has better heat dissipation effect.

For the many growers who are unable to cultivate cannabis outside in the free abundant sunshine, grow lights are necessary to successfully grow cannabis indoors. Grow lights take the place of the sun, and power the growth of your plants and their buds. Light is like “food” for your plants, so without a lot of bright light, even a healthy cannabis plant won’t produce much bud at all. I think the new PopularGrow led grow light HY-MD-D169-S is your best choice.

cannabis (2)

There are still some other advabntages:

  1. High photosynthetic efficiency, 90% of the light can be absorbed by plants.(According to our customer feeback)But traditional high pressure sodium lamp and metal halide lamp, only 8 to 10% of the photosynthetic
  2. The isolated power source will cut the too strong current and protect the chips
  3. Zero Maintenance Cost, Hassle-free Warranty.

When there is led chip or power source defective, users just need use a screwdriver to disassemble and replace, within 3 minutes to finish the replacement.

4.After continual testing and upgrading, we finally find the best spectrum and color ratio for the plants.

Our lights are good for all stages of plant growth , especially for the flowering and fruiting stages(IR LEDs involved to stimulate cell?division and increase the yield.)

5.Reduce the breeding cost, prolong flowering , promote plant early maturity, increase production, improve the quality of melon and fruit

To ensure the greenhouse vegetables taste, anti-season cultivation

Prevent diseases and insect pests of breeding, reduce the dosage of pesticide, green, pollution-free

Nine band:430~440nm, 450~460nm, 610~615nm, 620~630nm, 650~660nm, white, IR , UV 380~400nm,470nm

LED plant lighting market analysis

With the continued expansion of LED in the area of plant lighting, led grow light gradually applied to various fields such as agricultural crop production, fruit and vegetable cultivation, flower cultivation and so on. Although the application is less than the size of an ordinary commercial lighting or home lighting as widely, but the lighting of plants as a special field of application of LED, because of their superiority, gradually recognized by the market. The  market demand growing. Lighting giant played a positive role in promoting the entire plant lighting industry.

1 LED Grow Light HY-MD-D169-S

In the background of lighting market competion intense and environmental health problems increasingly prominent, plant lighting applications has become one of the development direction of LED.  Many LED manufacturers have started plant lighting business. Generally,the light source used in traditional plant cultivation is generally fluorescent lamps, metal halide lamps, high pressure sodium and incandescent lamps. These light sources are selected based on the adaptability of the human eye. There are a lot of unnecessary spectral wavelengths which have little use in promoting plant growth. As the fourth-generation new lighting source, LED have so many important features such as energy saving, safe, reliable, long life, short response time, small size, light weight, less heat and easily dispersed or combination control. The wavelength of light emitted from ultraviolet C (~ 250nm) to the infrared (~ 1000nm) wide interval range, and each LED emits light of a wavelength range can be very narrow. Thus, it is a truly spectrum control capability and very efficient plant lighting source.

Global LED lighting application of plant output in 2017 is expected to reach $ 500 million. Plant lighting as an emerging market, attracting a large number of international giants to open up.

In May 2016, Panasonic announced that they delivered “Artificial light type plant factory system.” to West Japan company’s corporate SG Greenhouse Gas. SG Greenhouse from January 2016 began planting demonstration experiments. After that, from May 20, they start selling “low potassium lettuce.” which the potassium content is reduced to the original 20% (98mg / 100g or less). It is reported that artificial light type plant factory system and cultivation technology combines multiple technologies of Panasonic, including the plant breeding control technology, lighting, air conditioning and other environmental control technology. The plant factory system will reduce power consumption while providing a homogeneous cultural environment, improving cultivation yields, contributing to the industrialization of agriculture.

 

Greenhouse Cultivation Techniques of LED Grow Light

G reenhouse Cultivation Techniques of LED Grow Light

With LED lighting applications gradually expanded, more and more bio-industry noted LED lighting business. In Canada, for example, sales of greenhouse fruits and vegetables more than 1.1 billion US dollars. How to provide effective lighting for the greenhouse is the key to support greenhouse production and increase revenue.

For the production side, even at moderate temperatures, adequate nutrition and water conditions, the greenhouse will be affected due to limited light. McGill University Canadian researchers believe that the current greenhouse supplementary lighting commonly used methods, such as traditional high pressure sodium lamp for plant growth is not the most efficient light sources, thus actively seeking other alternative lighting.

Researchers noted that the light which plant photosynthesis need is at a wavelength of about 400nm to 700nm, especially the blue and the red light region is the closest plant photosynthesis efficiency curve.  They think that growers can use LED grow light to combine specific wavelengths of light according to the needs, so as to convert the light to photosynthetically active radiation. Not only can improve plant yield, but also to control invalid wavelength which impact the growth of plants. There is also conducted experiments to test whether LED lights can reduce lighting costs of greenhouse.

Scientists had a test with hydroponic tomato. They had a 120-day test with red and blue LED lights in three ratio according to three kinds of light intensity. They also compared with several other light supplement ways including high pressure sodium hundred percent, one hundred percent red light LED lamps, high pressure sodium lamp with the red LED lights in half, and without any supplements.

The results show that the five kinds of light mode which make the most fruit production are in order,red and blue LED ratio of 5: 1 high light intensity, 5: 1 middle light intensity,5: 1 low light intensity, 19: 1 high light intensity and one hundred percent LED lighting. The effect on plant growth assisted by the LED illumination is more ideal than high pressure sodium lamp. It is also said that the method to improve greenhouse lighting appeared.

On the other hand, the experimental results also show that high illuminance can enhance plant growth and fruit production. 19:1 can produce more plant material, 5:1 can increase fruit production. McGill University researcher pointed out that increasing the number of red LED lights hyperplasia plant material, fruit production is reduced slightly. Therefore, LED grow lights in strengthening greenhouse artificial lighting systems, by the relevant researchers believe is extremely useful method.