A strong band, where tin-plated copper wires have been combined with non corrosive wires. Copper wires are 42 times more conductive than non corrosive wires, but the latter are much stronger. TLD combines these two properties. If the copper wires break, the current is carried further by the non-corrosive wires to the next point of contact. Five-year UV warranty. 200 m. 0.48 Ω/m. 20 mm, 5 conductors.