| 摘要 |
PURPOSE: A LED lighting apparatus with a down flow fan is provided to control the light having different wavelengths according to the kind or the growth time of plants. CONSTITUTION: The light of LEDs(1a) is emitted by controlling a power source and a control device. The light of different wavelength is selectively irradiated to a plant according to plants or the state of growth. The LED substrate is installed inside a housing(3). A blower(2) is formed in the inside of a cover(4) covering the housing. Blast holes(11,31) pass through the LED substrate and the housing. |
