Light environment is one of the important physical environment factors for plant growth and development. It is an important technology in facility cultivation field to control plant shape construction through the light quality regulation of LED grow light fixture; Led grow light fixture has the function of environmental protection and energy saving. Led grow light fixture provides photosynthesis to plants, promotes plant growth, shortens the time spent on flowering and results of plants, and improves production. In the modernization construction, it is an indispensable product of crops.

The wavelength types of LED grow light fixture are rich, which coincide with the spectral range of plant light synthesis and photomorphology; The spectrum wave is half wide and narrow, and the pure monochromatic light and composite spectrum can be obtained according to the needs; Led grow light fixture can concentrate on the light of specific wavelength to irradiate the crops evenly; Led grow light fixture can not only regulate the flowering and Fruiting of crops, but also control plant height and plant nutrient composition; The system has less heat and small space, which can be used in the multi-layer cultivation system, which can realize the miniaturization of low heat load and production space.

As the fourth generation of new lighting source, led grow light fixture has many characteristics different from other electric light sources, which makes it the first choice of energy saving and environmental protection light source. The LED applied in plant culture also shows the following characteristics: the wavelength type is rich, which is in line with the spectral range of plant photosynthesis and photomorphogenesis;

In addition, its strong durability also reduces the operating cost. Because of these remarkable characteristics, LED is very suitable for plant cultivation in controllable facilities, such as plant tissue culture, facility gardening and factory seedling raising and space ecological ecological life and protection system.