[18 gauge silicone wire Kit] Red, Black, Blue, White, Yellow, Green Orange brown. Each spool is color-coded in one of 8 vibrant colors, simplifying circuit identification and organization [Material] 18 AWG Electrical Tinned Copper Wire feature a stranded wire construction of 30 strands of 0.18 mm diameter tinned copper, which provides better anti-corrosion and oxidation resistance [Feature] The high count copper conductor & soft silicone insulator make the cable super flexible, caused super low impedance & highly efficient automotive wire, easy to strip and cut [Specifications] 18 Gauge Flexible Hook Up Wire Kit, outside diameter: 2.17mm, high voltage:3000v, maximum current: 22A, high and low temperature: 392°F/-40°F [Wide Application] Silicone wire are widely used for most low voltage cases, such as LED lighting, lithium batteries, RC batteries, automotive, remote control models, electrical appliances, robots, etc