iPower 3 x 20 Seeding Heat Mat Upgraded Carbon Film Indoor Warm Hydroponic Plant Germination Starting Pad Durable Waterproof, Black

3 x 20 heat mat makes a perfect warm germination station for indoor growing. Simply put the seedling heat mat under a seedling tray or windowsill herb garden and plug the cord into a 120 V outlet. For best results when first starting seeds, use a propagation dome over or plastic wrap over the seedling tray and keep it near a good light source like a south facing windowsill. 3x20 heating pad also great for brewing beer, tea, kimchi or yogurt, fermenting kombucha. Fits perfectly around a 1 gallon jug (Jug Not Included). Features: (1) 3 x 20 heat mat. (2) Provides uniform heating. (3) Includes a rubber band to hold mat to brewing containers. (4) Includes easy-to-read, self-adhesive liquid crystal thermometer. (5) Intended for indoor use only, waterproof and easy to clean. WARNINGS: Fire or electric shock may result from improper use. Make sure that the surface under the mat is free of sharp points or objects that might puncture the mat. Do not place mat inside tray or cover directly with soil or growing medium. Do not place any heat insulating materials over the heat mat, as it may cause it to overheat. DO NOT IMMERSE IN WATER.