315~400nm–– This kind of light wave is also a far-ultraviolet light, although there is no ultraviolet rays to harm plants, in order to have no direct effect on plant growth, chlorophyll absorption is small, affecting the photoperiod effect, preventing stem elongation. Led Grow Light Oem, Grow Light Bulb , Meanwell Led Grow Light , Quantum Board Led Grow Light ,Led Grow Light 12V Dc . Water: Some plants are drought-tolerant, and some like sufficient water, which must be adjusted according to plant habits. The product will supply to all over the world, such as Europe, America, Australia,Belarus, Mozambique,Saudi Arabia, Amsterdam.In the past, the cost of LED lighting remained high, so plant factories mostly use fluorescent tubes or high-pressure sodium lamps, with the decline in LED prices and technological improvement, the application of LED in plant factories has seen a new wave of progress. At present, there are not many manufacturers engaged in LED grow lights in China, most of which are concentrated in Shenzhen.