Hydrofarm heat mats are perfect for veteran growers, beginners, and children too. They improve germination by warming the root area 10-20°F over ambient temperature. By warming the roots, you increase your growing success! Bottom heat is one of the most important and effective ways to improve germination and rooting. The seedling heat mats have been re-engineered for better performance and greater durability! The new, stronger heating wire and thicker multi-layer construction offer more uniform heating and the durability to withstand rugged greenhouse environments. Hydrofarm heat mats allow you to maintain desired fermentation temperatures in carboys and controllable heating for other hobbies, including homebrewing, Kombucha and Kefir. Measures 8.87" x 19.5", Inches

• Warms root area 10-20˚F over ambient temperature to improve germination to Increase success of seedlings and cuttings
• Hydrofarm is the only UL-listed seedling heat mats on the market!
• 6 foot Power Cord and Waterproof construction
• 50% thicker construction
• Lighting, watering, and planting information printed on mat