The first color listed for these lights is the “primary” color. The white wire is ground and the black wire will be “low” power to the primary color. The red wire is “high” power to the primary color. Using the same white wire for ground, the yellow wire is power for the secondary color, the second color listed.

There are four wires, all attached to a .180 male bullet plug. The ground wire operates both theprimary and secondary functions. Includes mounting ring. Sold SINGLE.