#1 Seedling Heat Mat, E-TRENDS 10&rdquo; x 20.75&rdquo; &nbsp;Warm Hydroponic Heating Pad W Durable Waterproof Design - Best Seed Starter Propagation Heating Mat for Seedling, Cloning, Cutting, and Germination &radic; Seedling heat mat for better veggie, herb, and flower seed germination &radic; Warms root area 10-20 degree fahrenheit over ambient temperature to improve germination &radic; Seedling heat mat is the new, stronger heating wire and thicker multi-layer construction &radic; Increases the success of seedlings and cuttings,durable construction, waterproof and easy cleaning &radic; Dimensions: 10"x 20.75" Watt: 18W Power Cord's Length: 5.7ft