None 10 in. x 21 in. Seedling Heat Mat Upgraded Carbon Film Durable Waterproof Hydroponic Germination Starting Pad (2-Pack)

iPower 2-Pack 10 in. x 20.75 in. Seeding Heat Mat Upgraded Carbon Film Indoor Warm Hydroponic Plant Germination Starting Pad Durable Waterproof, Black Carbon Film Structure Our carbon film structure provides more uniform heat than heating wire. Upgraded heating film ensure uniform heating to ferment your home brew supplies. Warms root area 10°F to 20°F (5°C to 11°C) over the ambient air temperature, suitable for warm your windowsill herb garden. Advantages Suitable size10 in. x 20.75 in. heat mat. Seeding heat mat for better plant growth and flower seed germination. WaterproofIP67 waterproof level that enables safe scrubbing. Easy to clean. Supple, flexible, the sturdy edge design let the mat is ultra-durable Use Instructions: 1) Locate a flat, dry surface appropriate for the size of your heat mat. (Avoid cold surfaces, as they will counteract the heating ability of your heat mat.) 2) Plug the heat mat's electrical cord into a standard 120-volt outlet. 3) Place a propagation tray or other plant container on the heat mat. 4) For best results, cover seedlings/cuttings with a humidity dome.