LED lights with plants, flowers away from how many centimeters for benefit

This is more energy-efficient, has very little waste heat emitted, and has a long lifespan. LED planting is absolutely possible, but I don't recommend raising it at home, although it can be full spectrum, but the distribution of full-spectrum lamp beads is not uniform, if a small area is irradiated at close range, for small plants, the spectrum distribution is not balanced enough. And now I haven't found a more power-saving one with medium-wave ultraviolet rays, and the uneven distribution of lamp beads can be solved by large-scale and long-distance, but in general, full-spectrum LEDs are more suitable for greenhouse and factory-type planting.

At the same time, the lack of UVB is also more suitable for growing C3 and C4 plants. If you add UVB lamp beads alone, it is possible to have a large area with high intensity. However, in general, it is not very efficient if the amount is small.

If the annual plant, do not consider the root development, do not consider the morphology, red and blue are enough, if you consider the root development needs to add orange-yellow light, orange-yellow light also has a certain underground accumulation effect.

2.Trichromatic.

The heat is not too much, it is cheap, the spectral distribution is not very reasonable, the energy consumption is relatively large, and the utilization rate of plants to the light emitted is less than 70%. The disadvantage of using three primary colors is that the energy consumption is still a little larger, and the light intensity of 10000lx can be said to have no effect on desert plants. But the amount of energy required for 10,000 lx is quite terrifying, and I have calculated that it is about 500 watts per square meter (50cm distance), which is not very cost-effective for long-term use.

3.Little sun.

As the name suggests, it is a small sun, which fully imitates the sun's illumination, and even heats up. If it's enough, it's bright enough, and it's the same as the sunlight. But the amount of energy used is horrible if the amount is "sufficient", and none of the South African plants we like like to be too hot.

This is absolutely useless, the effect is not bad for planting tropical aquatic plants, or you plan to plant lotus flowers out of season, but the energy consumption is too amazing, and it is abandoned.

4.Rare earth lamps.

The main active ingredient is copper selenium powder, which causes a specific spectrum and has two colors: blue and pink. Aquarium lamps are also of this kind, and they are fluorescent lamps like the three primary colors. The spectral accuracy is higher than that of the three primary colors and less than that of LEDs, which means that the energy consumption is higher than that of LEDs and the life span is shorter than that of LEDs to achieve the same effect.

However, his advantage is that the light emitted is very uniform and the spectral continuity is strong. This uniform light is more suitable if we don't need much of an irradiated area. I mainly use this now, the blue one has a certain amount of UVA and negligible UVB, which is more suitable for use with UVB lamps.

Germany and the United States began producing such lamps for aquatic plants a few years ago. Now it is also produced domestically. 200w per square meter is basically enough for desert plants, and if it is for plateau plants, it can be increased appropriately.

Don't too much, it will be tragic! Nowadays, meat friends use blue lights more, I must say that the state of the plant with blue lights alone will be a little abnormal, if it is used as a half-day supplement light, it is no problem, if it is in the environment with an average of less than 2000lx during the day, you must add red light.

Can plants photosynthesize under light?

LED lights can make aquatic plants photosynthesize.

But the pureff of the LED light is actually very low. Therefore, the radiation required by aquatic plants is far from the radiation required for photosynthesis. Therefore, it is naturally difficult to grow well with LED lights.

Some grass friends in Taiwan and abroad no longer use the empirical formula of watt liters to determine how many lamps are needed for a cylinder. Instead, it is calculated using photosynthetically available radiation (PUR).

There are several reasons for this: the light radiation will be lost due to the attenuation of the water depth of the tanks of different lengths, widths and heights, the scattering of the side area, and the reflection of the water surface. Therefore, the general empirical formula is actually very unreasonable in different shapes of cylinders.

There is an important parameter for the lamp: pureff is the emissivity of photosynthesis, which is different for each model of lamp. This is an important variable in the radiation formula.

Can plants photosynthesize under light?

Ordinary incandescent lamps allow plants to photosynthesize.

Plants mainly rely on blue-green light and red-orange light for photosynthesis, which are contained in energy-saving lamps, so plants can also photosynthesize under energy-saving lights. As long as it is light, but the intensity of photosynthesis for plants is different for different frequencies and colors, and green light will be weaker.

Photosynthesis is carried out by plants through chlorophyll, and there are two main spectral ranges that chlorophyll can directly absorb, one is in the red part of the wavelength of 640 660nm, and the other is the blue-violet part of the wavelength of 430 450nm, in addition, the lutein and carotene in the plant can also absorb light energy and then transfer it to chlorophyll for photosynthesis, the absorption spectrum range of lutein and carotene is about 400 500nm, which is slightly wider than the blue-violet light range directly absorbed by chlorophyll, Therefore, the whole spectral range that plants can use is 640 660nm + 400 500nm, as long as the spectrum of the fill light used coincides with the above range, it can be used for plants to photosynthesize.

LED lights can also be used for plant lighting.

Different plants have different requirements for light, so different frequencies and intensities and light hours should be selected according to the requirements of different plants.

Plants respond differently to photoperiod, which can be divided into long-day plants, short-day plants and intermediate plants.

The relationship between the spectrum of LED lights and the sensitivity of plants to light is shown in the figure below, and the light needs of different plants are also different. The wavelength, intensity, and time of LED lights can be artificially adjusted according to different plants, which is more suitable for different plants.

Yes, because the LED spectrum can be close to the sunlight spectrum, photosynthesis can be carried out.

OK. Red and blue LED lights are mixed with high photosynthesis efficiency.

After Houyi energy-saving research, it was found that the wavelength of LED grow lights is very suitable for the growth, flowering, and fruiting of plants. Generally, indoor plants and flowers will grow worse and worse with time, the main reason is the lack of light exposure, through the LED light suitable for the spectrum required by the plant, not only can promote its growth, but also can prolong the flowering period and improve the quality of flowers. The application of this high-efficiency light source system to agricultural production such as greenhouses, greenhouses and other facilities, on the one hand, can solve the disadvantages of insufficient sunshine leading to the decline in the taste of greenhouse vegetables such as tomatoes and cucumbers, and on the other hand, it can also make the winter greenhouse eggplant fruit vegetables go on the market before and after the Spring Festival, so as to achieve the purpose of off-season cultivation.

1) As a supplemental light, the light can be enhanced at any time of the day, which can extend the effective lighting time.

2) Whether at dusk or at night, it can effectively prolong and scientifically control the light required by plants.

3) In the greenhouse or plant laboratory, it can completely replace natural light and promote plant growth.

Houyi Energy Saving will answer for you: IR is infrared, which promotes the flowering and fruiting of plants.