| 摘要 |
An illumination device for enhancing plant growth includes a substrate unit, a light-emitting unit, a current-limiting unit, and a control unit. The substrate unit includes a substrate body. The light-emitting unit, the current-limiting unit, and the control unit are disposed on the substrate body. The light-emitting unit includes a first light-emitting module, a second light-emitting module, and a third light-emitting module. The current-limiting unit includes a first current-limiting chip electrically connected to the first light-emitting module, a second current-limiting chip electrically connected to the second light-emitting module, and a third current-limiting chip electrically connected to the third light-emitting module. The control unit includes a first PWM control module electrically connected to the first current-limiting chip, a second PWM control module electrically connected to the second current-limiting chip, and a third PWM control module electrically connected to the third current-limiting chip.
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