4&rdquo; Round LED Trailer Brake and Turn Signal Light Replacement Round LED Trailer Light for Turn Signal, Brake and Tail Light 15 Super Bright LEDs with Red Reflector Design Port Plug On Rear of Light is the Standard Staggered 3-Prong Design Complete with Male Staggered Plug and 10 Of Wiring if Needed DC 12 Volt  24 Volt