VIVOSUN Durable Waterproof Seedling Heat Mat Warm Hydroponic Heating Pad 48" … Product FeaturesRELIABLE RESULTS: VIVOSUN's professional heat mat maintains temperatures in the sweet spot of around 10?-20? above ambient air temperature - perfect for seed starting and cutting propagation!BUILT TO LAST: Supple, flexible and ultra-durable, with a fortified connection between mat and power cord, water-resistance that enables safe scrubbing and a 1-year warranty.STABLE, UNIFORM HEAT: VIVOSUN's strengthened Alloy Nikrothal heating wire and extra layer of insulating PET film ensure this durable mat never scorches your roots and produces lots of revitalizing dew when used with a humidity domeBEST SAVINGS IN THE MARKET: This 48" x 20.75" mat is perfect for four standard 1020 trays and slightly larger than comparable mats on the market; it also runs on only 105 Watts to help you save on electricity.PLANTS' BEST FRIEND: Works perfectly for spring seedling starts, in the winter or any time your plants need a heat boost.Product Description