Unit is supplied with 3 wire plugs for ground, brake/turn and tail light. Light is secured by the 2 studs (5" apart) on the Plastic Chrome Bezel. These lights are taillights and then get brighter for the turn signal and brake functions. Polycarbonate lens sonically sealed to housing to prevent moisture intrusion. These Lights are impact resistant and less susceptible to shock damage. Each LED Light is water-tight sealed. These LEDs draw less current, generate less heat and are brighter and light faster than an incandescent bulb. Red LED Tear Drop Trailer Car Truck Stop Turn Brake Tail Lights / Chrome Bezels