Electric Floor Warming Cables for use with Uncoupling Membrane Systems. 145 FT, 44.2 Meters, 4.4 Amps, Power Consumption 522 Watts, Carton Weight 4.0 LBS, 2 Cartons per Case, Covers 35 to 46 SQFT at Standard Spacing, Covers 24 to 21 SQFT at Dense Spacing