Features:Horn NOT Included.1 set relay harness only.Connect up to two horns.Heavy duty, high efficient, heat resistant, never melt.Made with 18 Gauge wire, high efficient copper wiring.Universal for most grille mount electric blast horns (including all Hella Blast Horns).Specification:Voltage: 12/24VCable length: 100cmWorking current: 40AMaterial: Plastic & MetalColor: Black, White, Yellow, Blue & RedPackage Included:1X 1m Horn Wiring Harness