Full Spectrum Plant Light - Each see starter tray has 8 LED grow lights. Full spectrum light just like natural sunlight. Greatly promotes indoor growth as it accelerates photosynthesis, ideal for all stages of growth and various of plants. 4 Levels Brightness & Timer Setting - Different brightness to meet each plant's lighting requirements at different stages. 4 levels of timer settings to make the light auto turn off after 4/8/12/18H. [NOTE: The timer cannot be cycled every day, you need to turn it back "ON" by yourself.] Upgrade Heightened Lid: Increased the height of the lid to provide ample room for flowers, vegetables, fruits, herbs and other plants to grow. It is not only suitable for seed germination but also suitable for plant cutting germination. The tender plants can stay longer time in the seed starter tray. Thicken 0.8mm Material: Compare with other 0.5mm plastic material, our seed trays use 0.8mm PVC material for reusable, durable and not easily broken. (Note: Please avoid prolonged high-temperature exposure over 48C) Unique Design: Adjustable window let you can adjust the inner humidity from 50%-100% to meet your needs. Transparent seed stray lets you keep an eye on the growth. Drain holes at bottom for better drainage. So you have total control over the growing process.