LEDs as a light source for plants

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  • LEDの植物栽培利用
  • LED ノ ショクブツ サイバイ リヨウ

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<p>In Japan, a number of plant factories have opened since the late 1980s and are still operational. In 2000, Cosmo Plant Co., Ltd., opened an LED-based plant factory, Cosmo Farm, which is the world’s first commercially operational LED-based plant factory. The factory utilizes high-intensity red LEDs for producing lettuces. One problem with the LED lighting system is cooling. Elevated temperatures in the LED lighting system reduce the efficiency of the system and also lower the life expectancy of the LEDs. Therefore, the development of an efficient water-cooling system is needed. An encouraging trend has been observed that the output from commercially available LEDs is increasing while the cost of LEDs is decreasing. This trend will increase the feasibility of LED-based plant factories in the near future.</p>

Journal

  • Oyo Buturi

    Oyo Buturi 77 (11), 1298-1302, 2008-11-10

    The Japan Society of Applied Physics

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