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Taiwan explores pesticide-free farms by replacing the sun with LEDs

Chang Chen-kai is part of Taiwan's new generation of high-tech farmers that is harnessing the island's technological edge in light-emitting diodes to grow vegetables indoors under bright LED lights. Chang works in an air-conditioned "grow-room" at a plant factory operated by ARWIN, a biotechnology company, where plants grow in nutrient-filled water instead of soil and the temperature and humidity are controlled. LED lights imitate the cycle of night and day.

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