For indoor growers, these are very appealing. Before LED lamps were as advanced as they are today, the primary application for growers was in the form of supplementary lighting. A grower might use a HID grow light setup throughout the different stages of growth. For plants that need extra light, or for more power during flowering, they would add in LED panels in specific places since they are so easily attached without taking up space. Now, however, there are powerful, and much larger, LED panels that can supply an entire grow room with a bright light that keeps your plants healthy and profitable.
Other lighting systems require large ballasts and cooling systems, but LED lights are entirely self-contained. A panel, that may be in the shape of a circle, square, or plenty more is simply hung above your plants. The size of your grow will determine how large it will be, but they will all be lined with rows and rows of tiny LEDs.