Abstract: An airflow apparatus includes an air tunnel, a fan motor, a fan blade, a box housing and two expandable side units. The fan blade is driven by the fan motor for moving air moving in the air tunnel. The box housing encloses the fan motor, the fan motor and the fan blade. The box housing has multiple fixing units for fixing to a bracket when the box housing is place upon the bracket for limiting movement of the box housing in a first installation mode. The two expandable side units are attached to a lateral side of the box housing. The expandable side units have extending portions extending respectively from two opposite peripheral edges of the box housing. There is an ear hole for each expandable side unit for inserting a fixing hook placed on an installation wall surface in a second installation mode.

Abstract: A radiator and a plant illumination lamp containing the radiator. The radiator includes a heat-radiating baseplate configured for fixing a heat source, and heat-radiating side plates connected to the heat-radiating baseplate. The heat-radiating side plates each are provided with a plurality of heat-exchanging through grooves running through the heat-radiating side plates. The heat-exchanging through groove forms a heat potential difference, so that under the influence of the heat potential difference, the cold air outside the radiator passes through the heat-exchanging through groove on the heat-radiating side plates, and then flows out through a hot air chamber and an air outlet at an upper end of the hot air chamber after exchanging heat with the heat-exchanging through groove on the heat-radiating side plates, so as to form a strong natural air convection.

Abstract: A radiator and a plant illumination lamp containing the radiator. The radiator includes a heat-radiating baseplate configured for fixing a heat source, and heat-radiating side plates connected to the heat-radiating baseplate. The heat-radiating side plates each are provided with a plurality of heat-exchanging through grooves running through the heat-radiating side plates. The heat-exchanging through groove forms a heat potential difference, so that under the influence of the heat potential difference, the cold air outside the radiator passes through the heat-exchanging through groove on the heat-radiating side plates, and then flows out through a hot air chamber and an air outlet at an upper end of the hot air chamber after exchanging heat with the heat-exchanging through groove on the heat-radiating side plates, so as to form a strong natural air convection.

Abstract: A multi-spectrum generating device and method thereof. The multi-spectrum generating device includes at least one first luminaire, at least one second luminaire, and a control component. The first luminaire and the second luminaire each have a light source. The control component is connected to the first luminaire and the second luminaire for controlling the first luminaire and the second luminaire. In the present application, by controlling the switches of the first luminaire and the second luminaire, the multi-spectrum can be realized, so as to meet some special requirements of photobiological regulation. Moreover, the first luminaire and the second luminaire are mutually independently controlled luminaires and are controlled by different power sources, so the control circuit is simple and has a low cost, without affecting the primary demanded spectra provided by the first luminaire. Therefore, the present application has high utilization rate and high flexibility in use.

Abstract: A plant illumination optical device includes two LED lamp bodies. Each of the LED lamp bodies includes a reflector and an LED lamp located at an inner side of the reflector, and an angle between the central light rays of the two LED lamp bodies is adjustable. A plant cultivation device contains the plant illumination optical device. The plant illumination optical device and the plant cultivation device can reflect the light beyond the planting area to the planting area and can supplement the illumination on both sides of the illumination centerline, thereby avoiding light waste, improving energy efficiency, improving the illumination uniformity in the planting area, and improving planting quality of the planting area.

Abstract: A multi-spectrum generating device and method thereof. The multi-spectrum generating device includes at least one first luminaire, at least one second luminaire, and a control component. The first luminaire and the second luminaire each have a light source. The control component is connected to the first luminaire and the second luminaire for controlling the first luminaire and the second luminaire. In the present application, by controlling the switches of the first luminaire and the second luminaire, the multi-spectrum can be realized, so as to meet some special requirements of photobiological regulation. Moreover, the first luminaire and the second luminaire are mutually independently controlled luminaires and are controlled by different power sources, so the control circuit is simple and has a low cost, without affecting the primary demanded spectra provided by the first luminaire. Therefore, the present application has high utilization rate and high flexibility in use.

Abstract: A plant illumination optical device includes two LED lamp bodies. Each of the LED lamp bodies includes a reflector and an LED lamp located at an inner side of the reflector, and an angle between the central light rays of the two LED lamp bodies is adjustable. A plant cultivation device contains the plant illumination optical device. The plant illumination optical device and the plant cultivation device can reflect the light beyond the planting area to the planting area and can supplement the illumination on both sides of the illumination centerline, thereby avoiding light waste, improving energy efficiency, improving the illumination uniformity in the planting area, and improving planting quality of the planting area.

Abstract: A radiator and a plant illumination lamp containing the radiator. The radiator includes a heat-radiating baseplate configured for fixing a heat source, and heat-radiating side plates connected to the heat-radiating baseplate. The heat-radiating side plates each are provided with a plurality of heat-exchanging through grooves running through the heat-radiating side plates. The heat-exchanging through groove forms a heat potential difference, so that under the influence of the heat potential difference, the cold air outside the radiator passes through the heat-exchanging through groove on the heat-radiating side plates, and then flows out through a hot air chamber and an air outlet at an upper end of the hot air chamber after exchanging heat with the heat-exchanging through groove on the heat-radiating side plates, so as to form a strong natural air convection.