The 6 Inch Midship Turn Signal and Side Marker Kit with Reflex from Buyers Products is an auxiliary marker light used on trailers 30 ft or longer. The design of this light provides extra visibility and serves three functions: side marker, reflector, and turn signal light. With nine LEDs, the light has an amber lens and features an internal Reflex optic, which eliminates the need for a separate reflector. Lights also include a PL-3 plug and black grommet. The lights are backed with a limited lifetime warranty.