Brown 14 AWG Tinned Copper Wire - 15' They are constructed with premium vinyl insulation that is rated at 600V, 105°C dry and 75°C wet, stays flexible even in extreme cold (-40°F/C) and resists salt water, battery acid, oil, gasoline, heat, abrasion and ultra-violet radiation. Highest quality ultra flexible (Type 3) tinned copper stranding provides maximum protection against corrosion and electrolysis while resisting fatigue due to vibration and flexing.Wire Gauge: 14 AWG.