Germany developed a highly efficient energy-saving greenhouse lighting LED light source

German SIEMENS company, a subsidiary company recently launched a deep red light-emitting diode (LED) light source of greenhouse, can more effectively meet the needs of crop photosynthesis and energy efficiency are also more obvious?

In recent years the development of high power LED for the successful application of this technology in the greenhouse fill foundation? SIEMENS company recently issued a press release said that its subsidiary OSRAM Opto Semiconductors "development of the LED light source of greenhouse emission wavelength to 660 nm, very suitable for plant photosynthesis? In addition, the LED light source can be 37% of the input electric energy into light energy output and luminous efficiency has been among the best in the same color light source, and thus the traditional greenhouse light source compared to more energy saving?

According to SIEMENS, a pilot project in Denmark with approximately 50 thousand of the LED light source for thousands of square meters of planting area is 40% lower than the past to fill the greenhouse energy consumption?

At present the main source of artificial lighting in greenhouse with fluorescent lamp? High pressure sodium? Low pressure sodium lamp and metal halide lamp, the light source IR and green spectral components accounted for a larger proportion, crop photosynthesis required red? Blue spectrum is less, low light efficiency, high energy consumption?

In contrast, LED light source can not only improve the utilization rate of light energy but also in the growth stage of greenhouse, targeted different crops to promote crop growth, such as red light can promote crop grown, blue helps the formation of crop germ? In 10% and 30% in the range of targeted adjustment in the light of the blue ratio can also save fertilizer?

SIEMENS said that the red light and blue light LED system luminous efficiency is 60% higher than the traditional high pressure sodium lamp, and LED light source life expectancy of an average of 100 thousand hours, can be long-term maintenance free?