1RELIABLE RESULTS:Professional heat mat maintains temperatures in the sweet spot of around 20-3068-86- perfect for seed starting and cutting propagation.2STABLE, UNIFORM HEAT: Strengthened heating film ensure this durable mat never scorches your roots and produces lots of revitalizing dew when used with a humidity dome.3BUILT TO LAST: Supple, flexible and ultra-durable, goes beyond stringent MET standards, water-resistance that enables safe scrubbing.4Safe use: This 20" x 20.75" mat is perfect for two standard 1020 trays and slightly larger than comparable mats on the market; it also runs on only 40 Watts to help you save on electricity. 5INNOVATIVE HEATING: With radiate far-infrared light wave, making the heat source softer, and proving the seeds with enough heat, it can be heated up to 40 104at an ambient temperature of 20-25 68-77in minutes.