Root Radiance seedling heat mat warms root area 10 to 20 degrees over ambient temperature improving the germination process and overall success of seedlings and cuttings. Durable portable and water resistant root radiance is ideal for greenhouses nurseries and indoor gardens. Includes a 6 foot 120V power cord. Fits (1) 10"x20" propagation tray. Watts: 20W Amps: 0.16amps.