The double-insulated heat mat uses far-infrared light waves to provide seedlings with a safe and precise amount of heat. Setting the watering time is important and should be based on your plant pot size and daily water consumption. Prepare saucers to hold the pots. After several tests, you will determine the ideal watering duration and interval time for your plants. Designed to increase the temperature of the rooting area by 10 to 20 degrees above ambient air temperature, this mat is perfect for indoor gardening, promoting better plant growth and flower seed germination, and improving the success rate of seedlings and cuttings. Waterproof design (IPX7 rated), protected against splashes, showers, and sprays. Due to its high waterproof rating, the seedling heat mat is easy to clean, offering enhanced water resistance and simple maintenance. Name: Plant Heat Mat Voltage: AC 110V Plug Type: US Plug (compatible with Canada, India, Mexico, Thailand, the Philippines, Taiwan, and other regions using US plugs) Color: Black & Green Material: PVC Package Contents: 1 x Adjustable Plant Heating Mat Note: Other items not included. Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.