The cable is designed for house water pipe and solar upper water pipe freeze-proofing protection requirement in winter, to maintain the water in pipes above 0 centigrade, and do not need a controller.The cable is very easy to install, suit for metal and plastic water pipes.We use the pure copper as the conductor, and the PE jacket, it's durable, UV resist, better than PVC jacket.Product name: water pipe heating cable/self regulating heat trace cableVoltage: 220V 230V 240VPower: 15-20W/M at 10 centigradeLength of power cord: 1.5 meterMax working temperature: 50 centigradeMin installation temperature: -30 centigradeStart-up current: less than 0.6 A/mMin. bend radius: @20C:25.4mm @-30C:35.0mmCable Structure:1. Pure copper conductor2. PTC heating element3. PE insulationPackage Including:2/5/8/10m heating cable with Switch and EU-plug( 1.5m power cord)