120V Stranded Hook Up Wire 120V Solid and Stranded Hook Up Wire available in a variety of sizes and colors. 300V Stranded Hook Up Wire 300V Stranded hook up wire is available in a variety of sizes and colors 300V Solid Hook Up Wire 300V Solid Hook Up Wire is available in a variety of sizes and colors. 600V Stranded Hook Up Wire 600V Stranded Hook Up Wire is available in a variety of sizes and colors.