Is sunlight required for hydroponics? The light is required for hydroponics, but not necessarily sunlight. You can grow hydroponically outdoors or in a greenhouse where your plants will get all of the light they need naturally. Industrial grade, outstanding appearance, look more sophisticated Surface oxidation treatment. A variety of colors can be customized. Waterproof and corrosion resistance. Our heatsink plate adopts pure aluminum 3mm thickness. Efficient heat dissipation, reduce light decay, maintain efficient operation of grow light always Reduce extra HVAC（heating, ventilation, air-conditioning, cool ） costs