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What is the LED Plant growth lights.

May 18, 2017

Plant growth lamp is a special kind of lamps, in accordance with the law of plant growth must be the sun, and plant growth lamp is the use of the principle of sunlight, light instead of sunlight to plant growth and development environment of a lamp.

LED plant grow light .jpg


After the application test, the wavelength of the plant lamp is very suitable for the growth of plants, flowering, the results of the general indoor plant flowers, will grow over time with the poor, the main reason is the lack of light irradiation, through the plant for the required spectrum of LED Light irradiation, not only can promote its growth, but also can extend the flowering, improve the quality of flowers; and this efficient light source system applied to greenhouses, greenhouses and other facilities such as agricultural production, on the one hand can solve the sunshine caused by tomato, cucumber Greenhouse vegetable taste decline of the drawbacks, on the other hand can also make the winter greenhouse eggplant vegetables ahead of the Spring Festival before and after the listing, so as to achieve the purpose of anti-season cultivation.

1, as a supplementary light, at any time of the day can enhance the light, you can extend the effective lighting time. 

2, whether at dusk or night, can effectively extend and scientific control of the plants need the light. 

3, in the greenhouse or plant laboratory, can completely replace the natural light, promote plant growth.

Plant growth lights

Plant growth lights

4, completely solve the nursery stage to see the day to eat the situation, according to the seedling delivery time to arrange a reasonable time.

The significance of interior lighting in the greenhouse

What we need to know is that the growth rate of plants depends on the intensity of light, that is, the amount of light absorbed by the plant surface, not depending on the number of light sources. Many people ask, what is the meaning of greenhouse lighting, how to do, what kind of light source selection?

The significance of the interior lighting in the greenhouse is to extend enough light intensity in a day. Mainly used in late autumn and winter planting vegetables, roses and even chrysanthemum seedlings. Greenhouse lighting has a huge impact on the growing season and seedling quality. Usually the tomatoes will be in the plant seedlings grow two cotyledons after the start of light, continuous light for 12 days can reduce the 6-8 days of seedling preparation period. But more than 24 hours of light will be plant growth disorders. The most suitable lighting time is 8 hours a day. In the days of cloudy and low light intensity, artificial lighting is a must. At least in the evening to give crops 8 hours a day light, and the time of day light to be fixed. But the lack of night rest time will lead to plant growth disorders and cut.

For tomatoes, the most effective light time is from dusk to midnight, 16: 00-24: 00 or from midnight to early morning 24: 00-8: 00, so light 8 hours rest 8 hours. In practice, we should provide light for plants throughout the growing season, from seedling to planting. In the last period we should reduce the light to 6 hours a day or even stop 2-3 days, if the light conditions are poor, to the planting period takes a long time, usually light to last for a month.

The choice of light source

When using artificial light, we must choose the closest to the natural light that meets the conditions of plant photosynthesis. Light source should have the following characteristics:


1. The efficient conversion of electrical energy into radiant energy

2. In the effective range of photosynthesis to achieve high radiation intensity, especially low infrared radiation (thermal radiation)

3. The radiation spectrum of the bulb meets the physiological requirements of the plant, especially in the effective spectral region of photosynthesis.

Comparison of intensity in the effective area of photosynthesis, the level of radiation in a variety of artificial light source, the sodium lamp energy conversion effect is twice the mercury lamp high. Sodium lamp is the most effective light source in the greenhouse that affects plant photosynthesis and correct growth. Tubular sodium lamp can reach 150lm / w high luminous efficiency radiation, is the current crop of the most favorable choice for the growth. Increasing the sodium vapor pressure in the ceramic arc tube amplifies the spectrum of blue and red light, which is the high range of wavelengths sought. In the application of high pressure sodium lamps and horticultural products, we recommend PLANTASTAR (OSRAM), SON-T AGRO (PHILIPS), LUCALOX XO (GE). Their difference is to increase the range of 0-40% more blue light, activate the plant's chlorophyll. In order to obtain the highest radiant energy, all the sodium lamps in the lamp cover on the side of the reflective layer. At present, most of the domestic factories generally as a street lamp on the spot on the use of sodium lamp plants, exports, to the majority of users caused a lot of losses.

LED plant grow lights .jpg

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