Product description 12ft 4mm² Solar Panel Wiring with MC4 connectors. Package contains Connection cable with MC4 compatible plug and wire sleeve ready for assembly with a solar panel module or a solar array. Simply plug into the connection cables on the junction box of the solar module and the other end to the solar charge controller. Supplementary cabling supplied to connect to leisure battery Features: Conductors in accordance with IEC 60228 class 5 tin-plated copper. Ozone resistant, UV-resistant, halogen-free, acid and alkali resistant. Short circuit resistance: up to 200 °C / 5 s. Heat expansion test at 200°C. Maximum permitted voltage: 1.8 kV Temperature range: -40°C to 90°C. Maximum temperature on conductor: 120°C MC4 solar connectors 12 ft wiring & 1ft wiring to battery terminal Shipping: Dispatched from Waterford Ireland