Upgrade the seed starter board with plant growth light: The seedling board with built-in LED growth light can not only better promote the rooting of plant stems, the formation of chlorophyll, the accumulation, absorption, and utilization of carbohydrates, but also control the light intensity, circulation, and growth of plants, so that they are always in the optimal growth environment and grow better. Adjustable humidity and drainage hole design: There are 4 ventilation holes on the dome of the seed starter board, which can be rotated to adjust humidity and temperature, improving the germination rate of the seeds, making it very convenient and simple. At the same time, there are drainage holes at the bottom of each cell for proper drainage, reducing root supersaturation, and thereby improving seed germination and survival rates. Reusable and easy to store: Our nursery trays are made of non-toxic PP material, which is very durable and not easily damaged. You can reuse them to reproduce various plants, which is very environmentally friendly. When you don't use them, just stack them up and don't take up too much storage space. Widely used: Indoor seed fermentation trays with growth lights are an excellent choice for various plants, such as flowers, vegetables, fruits, tomatoes, and other plants. Provide better nutrients and sufficient growth space for plants. Parameter: Color: green Size: 7.2 "x5.7" x2.2 "Seedling tray Size: 7.2" x5.7 "x2.3" Unit size: 1.5 "x1.5" x2.3 "Basic tray size: 7.2 inches x 5.7" x 2.4 "Data cable length: 39.4 inches Including: 5 seedling trays, 5 dome lights, 10 labels, 1 seedling starter, 1 Scarifier, 1 data cable