[8 AWG TINNED COPPER WIRE]: The solar panel cable is made of 140 strands 0.295 mm tinned copper, which has better conductivity, thermal conductivity, and corrosion resistance than other common materials, extra-thick insulation can withstand extreme heat and cold. [DUAL XLPE INSULATION]: Built with XLPE material sheath and insulation , withstand extreme heat and cold, working temperatures up to -40℉ to 248℉ (-40℃ to 120℃), anti-UV, anti-corrosion and Oxidation, longer service time. [PROFESSIONAL SOLAR EXTENSION CABLE]: Temperature range: -40℉ to 248℉ (-40℃ to 120℃), rated voltage: DC 1800V, conductor resistance: (20°C) ≤2.06Ω/KM, weather resistance: UV, rated current: 60A. [DURABLE AND SAFE]: This 8 AWG solar copper wire is IP68 Waterproof. And it has a UL94 V-0 flame retardant rating, which increases the feasibility of using the cable in severe weather such as rain, snow, and wind, and is suitable for outdoor solar panels, Roofs, boats, RVs, or cars powered by solar panels. Excellent Solderability: Tin-plated surface enables smooth, fast, and reliable soldering, forming strong solder joints that reduce the risk of cold solder joints, thereby improving installation efficiency and lowering connection failure rates. 1