Double Insulated Speaker Cable - Low Smoke Zero Halogen - 18 AWG PLEASE NOTE - LENGTHS OF 50m & 25m may NOT be supplied on a reel. What can it be used for? You may use speaker cable to attach your amplifier to your speakers. As this cable is double insulated, it can be used for commercial grade 100V line amplifiers and speakers as well as low impedance Hi-Fi systems. Technical Specification: 24 Strands with a 0.2mm diameter per core Area Per Core - AWG 18 (0.75mm Approx) Copper Clad Aluminium - Ensures excellent sound quality Outer Diameter - 7mm Internal Insulation Diameter - 2.5mm Insulation Nominal Thickness - 0.33mm Max Current Rating - 6A Colour - Pink Red & Black Internally For Polarity - Easy connectivity Outer Sheath Material - LSZH Internal Dielectric - PVC Low Smoke Zero Halogen (LSZH) - Low smoke zero halogen or sometimes known as Low Smoke Halogen Free (LSHF) cable is made of thermoplastic that emits a limited amount of smoke and no halogen when exposed to high heat sources such as fire. In a fire, a halogen-containing plastic material releases hydrogen chloride, a poisonous gas that forms hydrochloric acid when it meets water. Commonly used in buildings for safety in the event of a fire. Note, the pink outer sheath is manufactured from LSZH rated material and internal black & red sheaths are manufactured from PVC.