Two-color side marking with the option to choose your own color. Both colors can be chosen separately. The marking is made in such a way that when you connect the white color it replaces the red color. White is then dominant over red. You can use this if you want the lamp to switch between 2 colours.

This lamp has a dark lens, also known as a dark or smoke look. It is multi-voltage and has E-mark on both colours. So versatile.
 
Connection diagram:
Black: Mass
Red: red color
Yellow: white color