The StarryTow dual face pedestal mount stop,turn,tail light complies with the standards of DOT,  This is a dual face pedestal mount light and  lens is snaped into housing  so it is convenient to replace bulb by removing the lens , Red trailer light serves 3 functions: stop, turn, and tail light  and amber trailer light serves 2 functions : park and turn , 2 Lead wires to connect light and grounds through mounting pedestal , Works with 12V system ;

DOT compliant 

Dual face 

Combination Red and Amber lens

1 incandescent stop, turn and tail light

Pedestal bolt diameter measures 1/2"