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Fixtures for greenhouses
|Induction lamp / Induction lamp / Fixtures for greenhouses|
While growing different kinds of plants in the greenhouse, special lighting is required, which is significantly different from the previously used in greenhouses. DRL mercury lamps, conventional fluorescent LB (LD), as well as incandescent GLS 500, consume a lot of energy and provide a rather weak growth of plants due to the fact that their emission spectrum bears little resemblance to the one that required plants. Furthermore, plants are sensitive to the daily light cycle. As it turned out, increasing the brightness in the morning and decreasing it in the evening is an important spectral component of the light. In nature, the sunlight at sunrise and sunset at the last minute is red and orange (due to absorption of atmospheric layer of the blue light of the spectrum component). The complex biochemical processes in plants are configured in such a way that it is in these times they need the red spectrum of light in the morning - to wake up, and in the evening - to sleep.
Sunlight - the source of energy, carbon dioxide (carbon dioxide CO2) air - source of carbon - the main building material, and the water - a source of oxygen and the part of its structure at the molecular level. And all these three combined are vital for the photosynthesis process to occur, in which the formation of organic substances (carbohydrates) happens, with the aid of light energy due required for the photosynthetic pigment - chlorophyll. Chlorophyll (from the Greek "green" and "List".) - The green pigment that makes plants color green.
During the day, the light splits water into oxygen and hydrogen, and the plant stores energy. At night, the carbon dioxide bonds with hydrogen due to stored energy, and carbohydrate molecules are formed, resulting in growth.
It should be noted, when planting a seedling, the spectrum of 300-470 NM (Purple and blue color spectrum) is the most beneficial . Seedlings at the given spectrum are well formed and are growing, but from personal experience with the cultivation of cucumbers, HPS or an induction lamp should be used with a light temperature of 2700 K (warm light) for 3-4 hours per day, simulating the light day. Before the advent of flowers, blue light is removed in general, having in mind that the lighting should mimic a sunny day on its duration. Presence of the red part of the spectrum 600-670 NM is very important for the formation and development of the pods. Especially in this part of the spectrum, tomatoes are found to be very responsive, while cucumbers on the the other hand, "fear" long light in the red spectrum, they are interested in the spectrum of sunlight. In addition, it should be understood that the ballasts for the lamps must have an ability for smooth dimming. Without this, it is impossible to make a simulation resembling morning-day-evening-night.
iLS company, being one of the main manufacturers and suppliers of induction energy-saving lamps on the Russian market, is ready to offer a number of effective solutions for greenhouses. Despite the undeniable advantages of induction lamps in many aspects of lighting, some companies, applying and offering Bispectral lamps (lamps simultaneously emitting two spectrum: blue and red) aren’t as helpful and at times even harmful for the plant.
Our experiments with cucumbers, as well as experiments in the biological faculty of Moscow State University, show that sunlight lamp (HPS) is twice less effective compared to the Bispectral induction lamp for plant growth in greenhouse conditions. And really, if you think about it, the two spectra used simultaneously result in great loss in efficiency. Seedlings requires only the blue spectrum, red spectrum it is not needed, and supplementary lighting can be replaced by an analogue of the sun for a short time.
And vice versa - in the formation of fruit plants and their growth, blue spectrum is absolutely not necessary. Hence the conclusion can do yourself.
One simple solution is to use greenhouse induction lamp iLS Bio 01 with different spectra of light (blue, red, an analogue of the solar spectrum). Replacement bulbs can be made by hand, depending on the growth of plants.
Power of induction lamps iLS Bio 01 with replaceable bulbs is rated at 80W, 100W, 120W. This luminaire is ideal for small greenhouses, as well as for private greenhouses. The luminaire can be equipped with a lamp of the specific spectrum, or three interchangeable bulbs of different spectra for different stages of plant growth. As our customers previously requested, induction lamp iLS Bio 01 can be equipped with a set of hangers with adjustable suspension height, which makes this lamp versatile for illumination of plants at different stages of growth and ripening.
For use in large greenhouses, iLS company offers lighting iLS Bio 02 and iLS Bio 03. These luminaires can be equipped with induction lamps ranging from 80W to 300W. They are an excellent alternative to natural sunlight and luminaries with lamps which are conventionally used in greenhouses.
Our lamps have been tested by leading greenhouses, Timiryazevskaya Academy and the Faculty of Biology, Moscow State University.
Below are the results of experiments.