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2022 / 07 / 06
Talking about LED grow lights, what is the most reminiscent of them? Maybe a lamp is covered with LED diodes of different colors, of which white color diodes occupies most of the area and emits pinkish white light. Then it is equipped with a simple knob for easy adjustment of light and dark. This is the most popular full-spectrum grow light on the current market, which can provide plants with comprehensive light nutrition. Now, in 2022, the latest LED grow light technology is a combination of full-spectrum LED diode and intelligent technology: In terms of lighting technology, it has evolved from full-spectrum lamps composed of multiple colors to full-spectrum LED diode. In other words, each LED diode has the same spectrum. The light emitted from the lamp, each beam is the same. It overcomes the weakness of narrow LED band, so that the plant phototrophic absorption under the lamp will not be affected by the arrangement position of
Spectrum colors and cannabis: What`re the effects of various light color ?
2022 / 06 / 30
Cannabis grows and develops differently to different spectral colors. One of the most critical factors in cannabis cultivation is light, but light has different colors, which specific wavelengths of light can be used to obtain satisfactory cannabis? According to the current research, the main role is the following. UV: The effects of UV light on cannabinoids were first presented in an academic paper by Lydon et al. 1987. Lydon and his team concluded that UVB increased floral THC concentrations. UVB has strong radiation and can easily cause damage to plants and growers. But UV light works by stressing the plant, which defends and produces more THC. Therefore, relatively mild UVA can have the same effect. Even UVA needs to control the amount of use, that is, the lighting time, to avoid damage caused by prolonged exposure. Blue light: Studies have shown that blue light also has a positive effect on the increase in THC concentration. Blue light has been shown to increase the concentration of cannabinoids, especially THC, as demonstrated in the article by Magagnini et al. 2018. This is the first article to compare the differences between LEDs and HPS in cannabis growth and flower quality. At the same time, blue light will also enhance the compactness of t
How to choose the grow light ? Full spectrum ? Big PPFD or PPE ?
2022 / 06 / 28
Why is it always difficult and time-consuming to make decisions when purchasing grow lights? Because many people will tell us that we need to know many factors before buying: light intensity, consistency, spectrum, professional terms such as PPF, PPE, PPFD, Wattage, etc. With so many nouns and concepts, it is easy to confuse people. In fact, to make a wise choice, you do not need to fully understand these terms. The following will simplify everything for you. You only need to do simple calculations according to the formula to get the best and most suitable product. Just focus on PPFD, don't care about PPE and PPF Many people will say that PPE means the efficiency of the lamp and PPF means the amount of light in the fixture, which is true but has no practical meaning. This is because light is what the plant can actually receive, and PPFD is the only indicator of how much light the plant canopy can receive. The PPFD value is not completely controlled by the PPF. So regarding the amount of light, we only need to focus on the PPFD value.
LED grow light is best for growing herbs/vegetables at home
2022 / 06 / 23
For ordinary household vegetables or other plant cultivation, it is always difficult to obtain a stable harvest due to seasonal or weather restrictions, or it takes a long time to wait. But why do some people in the same climate get healthy vegetables or plants quickly? The secret is the grow lights which allows enough lighting every moment. That keeps plant growing in high efficiency. Whether or not grow lights are used during planting has a great impact on the growth cycle time. For some plants, it can even shorten the growth time by 1/2. Even in ordinary home planting can have the same result. Because the planting experiments we are going to share were conducted under ordinary home indoor conditions. Different wavelengths of light have different effects on plants, and each plant and each growth stage requires different light. Therefore, the ideal artificial light source should be able to do adjustable. In the planting experiment, for convenience, we just made a full-spectrum plant light. The vegetable grown is arugula. Two plates of arugula were placed next to each other in the same room, with the same medium and seeds.
LED grow light VS HPS: Cannabis grow more THC under LED
2022 / 06 / 21
Why we always hear the comparison of LED grow light VS HPS? Because more and more market data shows that LED grow light is the future of grow light. But HPS once represented an era of cannabis grow lights, and many still use HPS to grow cannabis today. So people is hesitate hen facing the choose of LED and HPS. On the question of comparison, almost all answers are from the perspective of energy cost and LED spectrum customization. But as a grower, it is obviously more concerned about whether the harvest is different, whether it is more or of higher quality. Today we are going to share a growing experiment that directly tells us how cannabis grows differently under different lights. The experimenter selected several common LED grow lights on the market and an HPS light as the experimental objects. In the first step, the researchers selected the products with the most uniform light distribution from the LED grow lights, because the LED grow lights are composed of many lamp beads distributed on the panel. Its light distribution will depend on the distribution of its lamp beads. The light consistency is an important factor in determining whether a high-quality end product can be obtained. After selecting the
How to grow cannabis at home - 6 important points
2022 / 06 / 16
Cannabis is a crop with high economic value. With the liberalization of policies, more and more regions allow people to grow and use cannabis at home. Growing cannabis at home is becoming more and more popular, just know these basics to get you started Before understanding the specific cultivation techniques, let's understand the cannabis plant first There are 4 main growth stages for cannabis: -Germination (3-10 days) -Seedling (2-3 weeks) -Vegetative (3-8 weeks) -Flowering (8-11 weeks) Each variety of cannabis has a little bit of differentiated needs at different stages of its life. This can be learned from suppliers when buying seeds, but in general one of the keys is that when promote flowering, shorter light times are often required. Lighting time usually become 12 hours or less. The later formed Cola is rich in THC and CBD, and when the hairs on top of the Cola turn brown and curl inward, it is time to harvest. Then by drying in a dark, airy space, pruning can be done once the flowers are dry, leaving useful buds. Here are the 6 most important points for growing marijuana at home: 1. Genetics determine the lower limit of cannabis' performance
How Many Plants Can Grow With Per Grow Light ?
2022 / 06 / 15
How many grow lights can be under one grow light is a frequently asked question. Because this problem is an unavoidable prerequisite for setting up an indoor grow room or tent. Next, this article will reveal how to choose plant lights according to the planting area, or how many plants to match according to the plant lights. There is no one-size-fits-all answer to this question, as he will set it based on several different conditions 1. Need to know the plants which is going to be planted This step is mainly to understand the required light intensity of the plant, which is generally expressed by a unit DLI (daily light integral). For details, please refer to our article.(https://fetonlight.bossgoo.com/news/how-to-decide-the-lighting-distance-of-your-led-grow-light-78726.html) In short, 24 hours a day, plants need to have light time and dark period in different growth stages. Because the light time of a day is limited, there will be a requirement for the instantaneous light intensity of the lamp, and this requirement is PPFD. So we first need to know the DLI and optimal photoperiod required by the plant and its various growth stages. 2. Determine canopy coverage The canopy generally refers to the topmost part of the plant that receives light most preferentially. Why canopy coverage does not necessarily equal the canopy area of a grow tent. Because plants generally cannot occupy the entire area of the planti
Real full spectrum LED grow light: not only white/red and blue or PAR.
2022 / 06 / 10
Many LED lighting suppliers will say that full spectrum LED grow lights are the best choice for growing plants because they mimic natural light from the sun. Because: "Plants have grown in the sun for millions of years. Why should we change the best things nature knows?" This is a good idea, but in fact, the full spectrum that most manufacturers say is not the sunlight spectrum, and the real sunlight spectrum does not exist on the market, or plants do not need it. First of all, what is contained in sunlight is very complex, including X-rays, radio waves, etc., so far scientists have not figured out, but regardless of which ones are not considered, sunlight also contains a very broad spectrum such as UV and far red. As shown below According to most of the current research, plants do not actually need such a wide spectrum, of which the PAR range is the most famous, PAR refers to the spectrum in the range of 400-700nm. The prevailing view is that this range of the spectrum is the one that allows plants to photosynthesize most efficiently. The traditional view also believes that in this range, red light and blue light are the most efficient. Therefore, most of the early LED grow lights are composed of red LEDs and blue LEDs. The color of this grow light is purple. Later, it was found that green light actually has a synergistic contribution to the photosynthesis of plants, and it was felt that during the planting process of purple light, it was difficult for people to observe the appearance of plants, so as to de
Use grow light correctly: How to fix/avoid light burn
2022 / 06 / 09
Light burn is one of the growing problems that many growers often face, especially for beginners. Light stress will happen when plants is exposed to too much light. Light stress refers to the state when plants receive excessive light, which is harmful. If the plant is under light stress for a long time, it will cause light burn. Therefore, light burn is generally caused by the incorrectly use of artificial light sources, and the harm will lead to yield reduction. How do you find out that your plants have light burn? Many people will judge by the color of the leaves, for example, the leaves change from green to yellow or brown; but in fact, only yellow leaves can not be sure the light burn happened, because nutrient burns(nute burn) also have similar phenomena. Nute Burn is due to the excess of nutrients in fertilizers, which block water, so the lack of water in plants causes the leaves to change color. Therefore, when you see that the leaf color has a color change, you can also rule out whether it is nute burn by checking whether the root also has a color change. Because nute burn usually starts from the root of the plant. Other typical feature when light burn happen: 1. Bleached
The Best Grow Lights For Amateur/Household Grower
2022 / 06 / 01
Cannabis cultivation is becoming less regulated. Small-scale planting by individual households has been opened up in many areas. Compared with large-scale commercial planting, personal planting has very different demands on grow lights. why? The main reason is that personal cultivation is a part-time job, which is destined to be limited in time and energy. The more pursuit is to enjoy the convenience of marijuana, or to enjoy the freshness of marijuana cultivation. Therefore, for planting, it pursues a good harvest under a limited budget, and requires a low level of trial cost. Then reflected in the product, Feton Ultra Light™ new generation of small wattage smart plant light is the most suitable for amateur / household indoor marijuana cannabis grower. Why ? 1. Save budget for lighting timer. Free your hands and mind allow cultivation become easy. Feton grow light™ can be used with APP and has a simple operation program setting function. Plants need different light intensities at different growth stages, and at different stages, they need to be switched on and off every day, because plants also need "evening" to rest. This
Why your grow light should include UV-A?
2022 / 05 / 30
Although the effects of UV cultivation have been studied for many years, there are still many misconceptions about UV, including the belief that all UV is bad for plants, or that only UVB is valuable. Next, we will share with you some research results on the benefits of UV-A for planting. First let's take a look at what is UV? The general term for light in the wavelength range of 10nm-400nm, which is subdivided into UVA/UVB/UVC. They correspond to different wavelength ranges respectively. UVA: 320nm-400nm / UVB: 275nm-320nm / UVC: 200nm-280nm. The shorter the wavelength, the stronger the damage ability to living things, but the weaker the transmission ability. Due to the presence of the atmosphere, almost no UVC reaches the Earth's surface. At sea level near the equator, 6% of solar radiation is ultraviolet, of which UVA is 5.7% and UVB is 0.3%. Depending on latitude, altitude and time of year, plants receive 10 to 100 times more UV-A than UV-B. Therefore, it can be said that light containing UVA is in line with the natural living environment of plants. Reasons to use UVA for indoor cultivation: 1. UV-A increases production Often misleading UV studies are not done on whole leaves or whole plants, but just some algae or chloroplasts. In fact, plants themselves have good natural adaptability to UVA, and different species show similar responses but different response mechanisms. The following series of studies have collectively demonstrated the above op
What's the best spectrum and light intensity for microgreens?
2022 / 05 / 27
Microgreens refer to the seedlings of vegetables or flowers and are considered one of the five most valuable cash crops in the world. Its growth cycle is fast, and it can be cultivated without soil. Therefore, it is very suitable for large-scale indoor planting in families or cities to achieve self-supply of food in cities. This plant is sensitive to the light environment, in fact, low light, plant growth and nutrient content will be inhibited, but excessive light intensity will photosystem, electron transport and ATP synthase complex and Calvin-Benson Circulating enzymes have adverse effects, so plant needs need to be clarified. In addition to this, lighting quality is also a factor. Therefore, successful planting requires an understanding of the light preferences of these plants. The following experiment brings us great inspiration. The scientists selected China Rose Radish (Raphanus sativus L.), Green Mizuna (Brassica rapa L. CV Nipposinica), Chicory (Cichorium intybus L.), and Alfalfa (Medicago) sativa L.), French Marigold (Tagetes tenuifolia CAV.) and Celosia (Celosia plumosa argentea L.), these typical microgreens were used for experiments. Each plant was exposed to two different light spectra and three light intensities. The two different spectrums are red-blue and red-blue-green. The three light intensities were PPFD 110/220 and 340. The results showed that the light quality and light intensity combinations required for optimal performance of different species were different. As shown in the picture below: The best performance of China Rose Radish is at PPFD 110 + red blue l
How high light intensity should be for cannabis growth?
2022 / 05 / 26
As we all known, cannabis is a light-loving plant that requires high-intensity irradiation. But actually the light intensity requirements of different growth stages is different, the flowering stage is the one that needs light the most, so the growth stage with the highest light intensity is generally the standard when choosing a plant lamp. After all, low intensity can be adjusted in a variety of ways if with hight intensity. So when choosing lights, is the brighter the better? Firstly, it needs to know about the relationship between light intensity and harvest. Take a look at the following schematic diagram of the experimental results. Scientists grow the same variety of cannabis at the flowering stage by using different light intensities. Light intensity increased from PPFD 350 to 1400. The total yield and harvest index also increased linearly. However, it is worth reminding that in this study, the scientists also controlled the input of various elements of the planting environment to meet the nutritional needs of plants under different light intensities, so this study can be said to be free of cost . As a grower, what is needed is the input-output ratio, more light means the input of lamps, more electricity bills, more nutrients, more carbon dioxide, etc. If environmental factors cannot cooperate with light, it will not only waste electricity bills, but
3 Tips to grow Cannabis well with grow light
2022 / 05 / 20
More and more people are trying to grow their own cannabis. However, marijuana is a light-loving plant, and many places don't have enough light conditions. At the same time, regulations often stipulate that growers must "hide" the cultivation site of marijuana. Therefore, artificial light is indispensable, and LEDs are becoming more and more mainstream because of their advantages of perfect spectrum, and low temperature. Here are 3 points you have to know about using LED grow lights to grow cannabis, you would understand the advantages of LED grow light better as well. 1/ When your plants are in the seedling stage after germination, you need to turn on your grow lights. Note that the light in the seedling stage cannot be too strong or too weak, so you need to adjust the intensity of growth. There are generally two ways: one is to adjust the distance between the light and the plant, and the other is through the control system on the light (if your plant light has one). Another important point is that the daily light integral (DLI), DLI is related to the daily light time/photoperiod and the light intensity of the lamps. For details, please refer to our article (
How to grow good quality vegetables with LED
2022 / 05 / 13
In an article we introduced how LEDs affect the taste of plants(https://www.ultraplantled.com/news/led-grow-light-can-affects-taste-of-vegetable-or-cannabis-79490.html). In addition to taste, harvest appearance and nutrient content are another important dimension in commercial cultivation. Recently, an organization has given us a big hint by using different spectra and different intensities to grow red lettuce. Control the grow lights and you will be pleasantly surprised. The group's experiment went like this: Using two different spectrum lights, each with three different intensities, was used to grow red lettuce. The only difference between the two lamps is that one contains enhanced UVA and blue light. It turns out that: 1. The stronger the light intensity, the higher the anthocyanin of the lettuce and the redder the color. 2. Contains enhanced UVA and blue light spectrum also shows enhanced effect on anthocyanin and red
Grow light cures Plant disease
2022 / 05 / 10
In terms of plant disease, the traditional means are various artificial chemical fungicides. However, today people have higher and higher requirements for food safety, and the restrictions on the use of various crops are becoming more and more strict. For example, the American safety requirement of cannabis which we have introduced before (https://www.ultraplantled.com/news/why-your-cannabis-grow-light-needs-uv-77491.html). In fact, with the popularity of LED plant lights, controllable lighting conditions have been proven to be an important means of plant disease treatment. A study by Bahian University in Israel proves this. The university's research is against downy mildew, which is commonly found in basil. The fungus, which reproduces by spores at night, causes basil to turn yellow and purple and lose its aroma. In fact, this disease is not unique to basil, it is also common in important crops such as cucumbers and corn. The researchers exposed infected basil leaves to 5 or 10 micromoles of blue, green, red or incandescent light at night. They were incubated for 20 hours in a growth chamber under humid conditions at 20°C. The results showed that red light (peak at 625 nm) inhibited sporulation by 99.7%, regardless of whether the leaf surface was exposed to light.
Compare to HPS, LED grow light helps control the environment
2022 / 04 / 28
Whether to use HPS or LED for commercial cannabis cultivation has always been a tangled issue. Many people know that LED lights are higher than HPS, although more durable, but the initial investment cost is higher. What many people don't know is that LEDs are creating greater profit margins for growers in terms of planting environmental control. This is why in just 4 years, the growers who use LED grow lights at all stages have increased from 21% to more than 60%. The pursuit of cannabis cultivation is high yield, and high yield must rely on a stable and controllable cultivation environment. LED grow lights have the following advantages in assisting environmental control: 1 Saving HAVC device cost and better for Vapor Pressure Deficit Management: The heat dissipation of LED work is much smaller than that of HPS. On the one hand, it can save the cost of HAVC equipment and the cost of power consumption.
How spectrum adjustable grow light save cost for commercial cultivation.
2022 / 04 / 27
Commercial cannabis growing always pursue a best cultivation environment. Since different growth stages of plants have different spectrum and light intensity preferences, when using traditional LED lamps, we often take the following two ways: 1. In different growth stages of plants, to replace or adjust growth light fixtures. For example, add a separate 730nm far-red light when approaching the flowering stage of the plant. 2. Set up different planting rooms and install LED plant lights of different spectra. For example, a room is used as a seeding room, a room is used as a vegetative room, and a room is used as a flower room. Then at different growth stages of the plants, move them out of one room and into another.
LED Grow Light can affects taste of vegetable or cannabis
2022 / 04 / 22
The traditional view is that the taste of plants is completely decided by the genes of the species, and there is no way to change them through cultivation techniques or ecological conditions. Light also only affects plant morphology or yield. However, based on experiments conducted by an organization, this view may be wrong. This organization grows the sweet basil with two groups, each using different light recipe. Group A: Group B: Aside from the spectrum, the rest of the growing conditions were exactly the same. After the same growing time, picking and scoring according to different flavor dimensions, the result shows obvious differences.
How to decide the lighting distance of your LED grow light?
2022 / 04 / 14
When it comes to the installation distance of plant lights, many people will blurt out 30 cm or 45 cm. In fact, this statement is not rigorous. The amount of care required by each plant is different, and this data is generally measured by DLI (Daily Light Integral). It is converted to the familiar PPFD as follows: DLI = mol/㎡/day PPFD = umol/㎡/second DLI = PPFD x 3600s x lighting hours / 1000000 PPFD = DLI x 1000000/ lighting hours / 3600s Therefore, to determine the installation distance of the plant light, we first need to know the DLI and the necessary photoperiod required for each growth stage of the plant. (The so-called photoperiod refers to the ratio of plant light time to dark time. For details, please see this article: https://www.ultraplantled.com/news/why-you-need-a-smart-control-grow-light- 77013.html) Assuming that the DLI required by a plant is 40 m
Different plant needs different grow light- Cannabis cultivation research
2022 / 04 / 08
As is known to all that different plants require different spectrums. But not many people know that even the same plant has different light requirements for different cultivars. Scientists did an experiment ever:Selected three different cultivars of cannabis, Type I (Larry OG), Type II (Pootie Tang), and Type III (Super White). Then during the last two weeks of the flowering stage, each cultivar was subjected to the same UVA light, and blue + red light. The result is : For Type I, the THC content of cannabis added with UV light increased by 3.6% compared to the control group, and the THC content of cannabis added with blue + red light increased by 2.9% compared with the control group. For Type III, the THC content of cannabis added with UV light increased by 4.1% compared to the control group, and the THC content of cannabis added with blue + red light increased by 3.9% compared to the control group. For Type II, however, there was no significant change in the THC content of cannabis comapred to the control group. This experiment shows that UVA can indeed have a positive effect on the production of
Why Far Red is important for flowering?
2022 / 04 / 07
The peculiarity of the far-red spectrum is that it can trick plants into thinking they are in the shade. For shade-tolerant plants, it is more beneficial to have broad leaves when the plant mistakenly thinks it is in the shade. But for other plants such as tomatoes and marijuana, when they mistakenly think that they are in the shade, they will desperately grow up high in order to get more sunlight, making the stems thin and long, causing "spindling growth". Spindling plant is not good, but that doesn't mean infrared is meaningless. In this article (https://www.ultraplantled.com/news/why-you-need-a-smart-control-grow-light-77013.html) we share that plant flowering is closely related to photoperiod. Both long-night and short-night plants require a certain amount of dark period to bloom better. At this time, the role of far red is highlighted. When there's far red, because plants mistakenly think that there is no sunlight, they can enter the "sleep state" faster or better, shorten the time required for the corresponding dark period, and shorten the plant growth cycle.
How Plants Affected by Far-Red Lighting(730nm)
2022 / 03 / 31
The traditional view is that only light in the 400-700nm band will affect the photosynthesis of plants. Therefore, regardless of PPF or PPFD, only the micromolar number of photons in the 400-700nm range is calculated. But is it the real? For example, does far-red light such as 730nm really have no effect on plant photosynthesis ? Scientists did an experiment. Grow lettuce in 4 different grow boxes, including: #Box 1 : PPFD=300umol/m2/s white light #Box 2 : PPFD=350umol/m2/s white light #Box 3 : PPFD=300umol/m2/s blue-red light #Box 4 : PPFD=350umol/m2/s blue-red light If we only look at the above data, it's easy to think that the harvest of the boxes No. 2 and No. 4 will be better than that of the boxes No. 1 and No. 3. But the truth is the opposite. After dewatering and weighing the lettuce in 4 boxes, if the dry weight of lettuce in b
Why Your Cannabis Grow Light needs UV
2022 / 03 / 30
There're two most common statements about why cannabis grow light need UV: 1. UV can promote the conversion of more cannabinoids into THC than CBD. 2. UV can enhance the resistance of plants and make plants stronger. But in fact, UV has another function: to prevent microbial contamination. What is microbial contamination: Microbial contamination refers to the infestation of cannabis with harmful microorganisms such as powdery mildew and mold. On the one hand, these microbial contamination will destroy the secondary metabolites of cannabis such as THC and terpenes, greatly reducing the commercial value of the product; On the other hand, many local governments (such as the United States) have established specific standards for the content of harmful substances in cannabis products, and products contaminated with microorganisms cannot enter the market for sale. Once the microbial content of the product is detected to exceed the standard, it is almost equivalent to a loss of 50% of commercial profits. Generally speaking, if the cannabis flower fails to pass the microbiological test, we generally have two
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.