Snow Melting Mat, Backing Characteristics Non-Slip, Color Black, Current (A) 1.1 A, ELCI Trip Level 30 mA, Features Watertight Connector Cables Enable it to Connect to Additional Mats, Grommet Holes in Every Corner, Flame Retardant Yes, For Surface Type Outdoor Stairs, Indoor/Outdoor Outdoor, Length 5 ft, Manufacturers Warranty Length 2 yr, Mat Product Type Snow Melting Mat, Plug Type 5-15P, Power Unit Included No, Series HRT, Snow Melt Rate 2 in/hr