Full Spectrum LED Plant Lights: Each seed starter tray has 8 LED grow lights that provide full-spectrum light that acts like natural sunlight to accelerate the indoor growth of seedlings, perfect for plants at all stages of growth. Adjustable Brightness & Timer Settings: Different brightness levels to meet the lighting requirements of each plant at different stages.4-level timer settings to automatically turn off the light after 4/8/12/18 hours. The timer can be automatically turned on and off at the same time the next day without unplugging. It also takes care of your plants when you are at work or on vacation. Upgraded Higher Cover & Adjustable Humidity: The raised dome provides more room for seedlings to grow, further increasing their survival rate. You can easily adjust the humidity between 50%- by rotating the adjustment window to maximize the growing conditions for your plants. Suitable for a wide range of plants, including but not limited to flowers, vegetables, fruits, herbs. Durable & Reusable Material: Made from 0.8mm PVC material for durability and reusability compared to 0.5mm plastic material. (Hint: Power plug is not included) Color: Green Material: Polyvinyl chloride (PVC) Package Contents: 1 x smart controller 20 x plant labels 4 x growth lights 4 x transparent covers 4 x seedling trays 4 x chassis 1pair x seedling lifters