Easy Heat 120' Roof/Gutter Cable with Clips & Spacers. This cable has a capacity of 5 watts per foot and is CSA and UL listed. It is 120 feet long and comes with the appropriate number of roof clips and cable spacers. ADKS cables are rated at 5 watt per feet, 120 Vac and have a three wire grounded plug with a 6 feet/2-meter power cord. Roof and gutter de-icing kits include the appropriate number of roof clips and cable spacers. ADKS cables are UL listed to Canadian Safety Standards and CSA Certified.