Faster germination, higher success rates, and faster growth for quicker transplanting and higher yield Automatically warms rooting area 10-20F over ambient temperature; can be used indoors or in a greenhouse, providing enough heat to get your garden established and healthy Faster germination, higher success rates, and faster growth for quicker transplanting and higher yield Automatically warm rooting area 10-20F over ambient temperature; can be used indoors or in a greenhouse, providing enough heat to get your garden established and healthy Instructions and growing tips are printed on the mat. Helpful Instructions and growing tips are printed on the mat, so you will never lose the instructions Just place the heat mat on a flat, dry surface under a seedling tray and plug the cord into a standard 120V outlet to begin heating your