| 摘要 |
<p>An illumination device with an LED for cultivating a plant is provided to accelerate the growth of the plant by mixing the ratio of the light emitted from the LED according to a specific wavelength. A first LED emits the light of the wavelength of 640 to 675nm. A second LED emits the light of the wavelength of 425 to 455nm. An illumination device mixes and arranges the first LED and the second LED at a ratio of 9:1, 8:2, 7:3, and 6:4. The first and second LEDs are mixed and arranged in the center of the illumination region of the LED device. The first LED is arranged outside the illumination region.</p> |
