Seedfactor 7-Pack Seed Starter Tray with Heat Mat (12 Cells per Tray), Plant Germination Trays with Adjustable Humidity Dome Seed Trays Seedling Starter with Base Trays for Germination

MET CERTIFIED SEEDLING HEAT MAT: MET safety certified；Comply with UL 499；CSA C22.2 No.64 ADJUSTABLE HUMIDITY DESIGN: Our transparent domes have a adjustable circular vents (Humidity circular vents and plant grow light 2 in 1), Adjustable ineer humidity from 50-100%. You can easily adjust the inner humidity and temperature by rotates the regulator to accommodate different stages of seed to seedling growth, promote air circulation and help seed growth.