BD&A Peterbilt Motors LED Hitch Cover Brake Light w/LED Accent Light Running lights turn on red LEDs, braking illuminates additional lights. Plastic cover plugs into your 4-pole trailer connector for easy on/off. Fits 1 1/4" and 2" hitch receivers; display face measures 6" x 3". Bright LED lights last nearly 100,000 hours. Custom-molded Peterbilt logo.