Osram high-efficiency LED for greenhouses allows plants to thrive and bloom beautiful flowers
On September 21, 2010, Golden DRAGON Plus and OSLON SSL LEDs ranked first in the market in the deep red range (wavelength 660 nm) with 37% efficiency, commercial greenhouse operators It will benefit from the high efficiency and energy saving features of new LEDs. In a pilot project with the Danish Fionia Lighting Company, a thousand square meters of flowerbeds successfully saved 40%.
In order for plants in the greenhouse to thrive, proper light is as important as the right temperature, and light in the deep red spectrum plays a key role in plant growth because the absorption rate of chlorophyll is high in this range. . Currently, both the Golden DRAGON Plus and OSLON SSL LEDs provide this deep red light with a typical power of 330 mW at 400 mA operating current and exceptionally high luminous efficiency. The high-power chips of these two LEDs are based on OSRAM 's thin-film technology and, with a lifetime of up to 100,000 hours, they can be operated for years without maintenance.
The Golden DRAGON Plus has a wide beam angle of 170°, which makes it ideal for use in reflective lighting systems in large planting areas; while OSLON SSL is smaller, 80° narrower beam angles can be arranged More closely. These two LEDs can also be equipped with external optics, and their unique features make them ideal for special applications, such as the “multi-layer planting method†of growing lettuce in a cascading manner, because the lighting must be fine when using this stacking method. Evenly.
Arrow's Danish distribution partner, Arrow, recently completed a pilot program with Fionia Lighting, which confirms the enormous energy savings potential of LEDs in horticultural applications. To implement the program, Fionia Lighting has deliberately developed a greenhouse-specific luminaire system with approximately 50,000 Golden DRAGON Plus LEDs. In a cultivation area with a radius of several hundred meters, the system successfully reduced energy consumption by 40%. Thomas Rubaek of Fionia Lighting Company proudly said: “The flowers grown under LED lighting are growing at the same rate as the standard samples grown under traditional lighting, but they have more flower buds than flowers grown under traditional lighting. The price is higher. In addition, LED lighting also reduces the use of chemicals such as growth regulators."
Red and blue are especially important for plant growth. The luminescence curve of the new red LED is very consistent with the spectral sensitivity of chlorophyll. Depending on the type of plant and the growing season, the ratio of red to blue must be adjusted separately, ranging from 10% to 30%. Dr. Christoph Gärditz, Solid State Lighting Business Development, Osram Opto Semiconductors, Germany, explained: “If the illuminance curve of the light source is compared to the spectral sensitivity curve of the plant (according to DIN 5031-10), the system efficacy of the LED is higher than the current high voltage. The nano-light is 60% higher. In this program, the combination of deep red LED and blue LED, the energy-saving effect is also amazing."
The tailored lighting system allows each plant to receive the right amount of light, and the commercial horticulture industry will benefit a lot.
About OSRAM Opto Semiconductors
OSRAM is a subsidiary of Siemens Industry and one of the world's two largest light source manufacturers. Its subsidiary, OSRAM Opto Semiconductors (Regensburg, Germany), supplies its customers with semiconductor technology for lighting, sensors and visualization applications. solution. OSRAM Opto Semiconductors has production lines in Regensburg, Germany and Penang, Malaysia. Its North American headquarters are located in Sunnyvale, California, and its headquarters in Asia is in Hong Kong. There are also branches in the world. OSRAM offers its customers a complete supply chain for the LED industry, covering components, modules and solutions. More than half of the R&D resources are invested in related technologies every year.