As the fourth generation of new lighting source, LED has many different characteristics from other electric light source, which makes it the first choice of energy-saving and environmental protection light source.
Leds used in plant culture also have the following characteristics: they have rich wavelength types, which coincide with the spectral range of photosynthetic action and optical morphology of plants. The spectrum wave width is half wide and narrow, and pure monochromatic light and composite spectrum can be obtained according to the requirement.
It can concentrate certain wavelengths of light and irradiate crops evenly; It can not only regulate the flowering and fruiting of crops, but also control plant height and nutrient composition of plants. The system has less heat and occupies less space. It can be used for multi-layer cultivation stereo combination system.
In addition, its extremely strong durability also reduces the running cost. As a result of these remarkable characteristics, LED is very suitable for plant cultivation in controlled facility environment, such as plant tissue culture, facility horticulture and factory seedling breeding, and space ecological health protection system.