The AC Infinity SUNCORE A5 Seedling Heat Mat, 20" x 20.75", enhances seed germination and growth with innovative far-infrared film for even heat distribution. Crafted with durable, easy-to-clean quad-layer PVC and IP-67 rated for waterproofing. UL and MET certified for safety, this mat provides a steady 80-87°F temperature range.,The AC Infinity SUNCORE A5 Seedling Heat Mat, 20" x 20.75", enhances seed germination and growth