This is a dual function light, hardwired with 4 plain wires. One face is red and the other face is amber. Can be used as both a marker and a turn signal. Sold SINGLE.

The 4th wire (yellow) can be hooked up to a separate hot wire / switch to activate the Purple auxiliary function. All faces of the light will turn purple. The purple auxiliary color is a single function, only.

Dimensions – 3.5″ x 3.13″ x 1.34″ with a 1.5″ long mounting stud.