As we know, LED is a popular light source with eco-friendly features. And with the rapid development of the agriculture and horticultural industry, the demand to improve the crop output is soaring. People begin to think of securing steady agricultural harvests with plant factories, and LED is gradually to be available in the horticultural sector. Generally, the sunlight has played a key role in promoting plants growth under the photosynthesis. And LED grow light has created huge business opportunities. Research has shown that the wavelength of LED grow light is good f...