The ProClass LED Amber Rectangular Stud Mount Light can be used as a clearance or side marker light on your trailer or vehicle. It increases visibility to notify other drivers of your trailer or vehicle. The clearance light grounds through the mounting screw and has a single lead wire to connect to a DC power supply. It features a reflective lens that reduces the need for a separate reflector, as well as durable plastic corrosion-resistant housing with built-in drain holes to withstand extreme weather.