TO+VDC(FUSE 1A)——————RED                  
TO CHASSIS GROUND————BLACK             
Synchronized ( Sync )————YELLOW           
Alternate—————————— WHITE             

TO+VDC(FUSE 1A)——————RED                  
TO CHASSIS GROUND————BLACK             
Synchronized ( Sync )————YELLOW           
Alternate—————————— WHITE             

Synchronized:

1: The lights Red connect together,black together,yellow together, yellow wires to touch the red wires, the lights will be synchronized

Alternating:

1: Turn off the power,and then connect white together, and then,use the yellow wires to touch red wires,the lights will be alternating flashing patterns.