AC Infinity SUNCORE H7, Seedling Heat Mat with Heat Controller, IP-67 Waterproof, 48" x 20.75"Description Heating Mat: This 48 x 20. 75 heating mat is designed to enhance seed starting and germination processes. By delivering precise, even heat, the mat guarantees a better germination success rate and accelerated growth for your seeds, all while eliminating the risk of scorching. Digital Heat Controller: Equipped with a digital controller that displays real time mat temperature. This feature allows for detailed heat adjustments, providing