Heatwave Floor Heating Cable 120V (8-15 Square Feet) with Required GFCI Programmable Thermostat Cable Length: 44 feet - Includes Required 7 Day GFCI Programmable Thermostat & Cable Strapping Coverage/Watt Density: 2.2" Spacing (8 sqft - 15 w/sqft ) - 3.3" Spacing (12 sqft - 10 w/sqft ) - 4" Spacing (15 sqft - 8 w/sqft) Voltage: 120V - Amps: 1 - Watts: 120 ETL Listed for US & Canada - Limited Lifetime Warranty by 20 Year USA Manufacturer 15 ft Cold Lead - ~1/8" Thick Heating Cable - Listed for Wet Locations