CMH VS LED grow light. CMH has a wide spectrum, including the UV and IR. The light efficiency is high, and the price is relatively cheap. Then what are the advantages of LED? LED can have a more precise spectrum. In a greenhouse with sunlight, you can choose to illuminate with only 660nm LEDs, which not only has a good planting effect, but also 100W can be equivalent to 300W CMH. The PPF maintenance rate of LED is 2-3 times that of CMH.
LED grow light can installed on multiple shelves to make full use of the space.